Home / 7,827,387.40-11,741,081.10-7,130,657.80

Finding the Fourth Proportional to 7,827,387.40, 11,741,081.10 and 7,130,657.80

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Solution

The fourth proportional to 7,827,387.40, 11,741,081.10 and 7,130,657.80 is: 10,695,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,827,387.40 : 11,741,081.10 = 7,130,657.80 : x
  2. Step 2: Convert to fraction form
    7,827,387.40/11,741,081.10 = 7,130,657.80/x
  3. Step 3: Cross multiply
    7,827,387.40x = 11,741,081.10 × 7,130,657.80
  4. Step 4: Simplify right side
    7,827,387.40x = 83,721,631,526,147.58
  5. Step 5: Solve for x
    x = 83,721,631,526,147.58/7,827,387.40
  6. Step 6: Final answer
    x = 10,695,986.70

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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.