Home / 910,689,785.98-1,256,752,310.40-493,002,057.76

Finding the Fourth Proportional to 910,689,785.98, 1,256,752,310.40 and 493,002,057.76

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Solution

The fourth proportional to 910,689,785.98, 1,256,752,310.40 and 493,002,057.76 is: 680,343,059.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,689,785.98 : 1,256,752,310.40 = 493,002,057.76 : x
  2. Step 2: Convert to fraction form
    910,689,785.98/1,256,752,310.40 = 493,002,057.76/x
  3. Step 3: Cross multiply
    910,689,785.98x = 1,256,752,310.40 × 493,002,057.76
  4. Step 4: Simplify right side
    910,689,785.98x = 619,581,475,121,834,240
  5. Step 5: Solve for x
    x = 619,581,475,121,834,240/910,689,785.98
  6. Step 6: Final answer
    x = 680,343,059.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.