Home / 752,646,265.20-1,128,969,397.80-558,936,020.70

Finding the Fourth Proportional to 752,646,265.20, 1,128,969,397.80 and 558,936,020.70

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Solution

The fourth proportional to 752,646,265.20, 1,128,969,397.80 and 558,936,020.70 is: 838,404,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,646,265.20 : 1,128,969,397.80 = 558,936,020.70 : x
  2. Step 2: Convert to fraction form
    752,646,265.20/1,128,969,397.80 = 558,936,020.70/x
  3. Step 3: Cross multiply
    752,646,265.20x = 1,128,969,397.80 × 558,936,020.70
  4. Step 4: Simplify right side
    752,646,265.20x = 631,021,662,698,407,424
  5. Step 5: Solve for x
    x = 631,021,662,698,407,424/752,646,265.20
  6. Step 6: Final answer
    x = 838,404,031.05

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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.