Home / 1,112,551,505.80-1,668,827,258.70-810,561,617.80

Finding the Fourth Proportional to 1,112,551,505.80, 1,668,827,258.70 and 810,561,617.80

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Solution

The fourth proportional to 1,112,551,505.80, 1,668,827,258.70 and 810,561,617.80 is: 1,215,842,426.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,551,505.80 : 1,668,827,258.70 = 810,561,617.80 : x
  2. Step 2: Convert to fraction form
    1,112,551,505.80/1,668,827,258.70 = 810,561,617.80/x
  3. Step 3: Cross multiply
    1,112,551,505.80x = 1,668,827,258.70 × 810,561,617.80
  4. Step 4: Simplify right side
    1,112,551,505.80x = 1,352,687,322,640,611,072
  5. Step 5: Solve for x
    x = 1,352,687,322,640,611,072/1,112,551,505.80
  6. Step 6: Final answer
    x = 1,215,842,426.70

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Double scale
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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.