Home / 1,107,218,151.60-1,660,827,227.40-646,919,386.80

Finding the Fourth Proportional to 1,107,218,151.60, 1,660,827,227.40 and 646,919,386.80

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Solution

The fourth proportional to 1,107,218,151.60, 1,660,827,227.40 and 646,919,386.80 is: 970,379,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,218,151.60 : 1,660,827,227.40 = 646,919,386.80 : x
  2. Step 2: Convert to fraction form
    1,107,218,151.60/1,660,827,227.40 = 646,919,386.80/x
  3. Step 3: Cross multiply
    1,107,218,151.60x = 1,660,827,227.40 × 646,919,386.80
  4. Step 4: Simplify right side
    1,107,218,151.60x = 1,074,421,331,530,352,128
  5. Step 5: Solve for x
    x = 1,074,421,331,530,352,128/1,107,218,151.60
  6. Step 6: Final answer
    x = 970,379,080.20

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Half scale
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Double scale
Find fourth proportional to 1,107,218,152.60, 1,660,827,228.90 and 646,919,387.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.