Home / 402,995,428.80-604,493,143.20-130,366,195.80

Finding the Fourth Proportional to 402,995,428.80, 604,493,143.20 and 130,366,195.80

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Solution

The fourth proportional to 402,995,428.80, 604,493,143.20 and 130,366,195.80 is: 195,549,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,995,428.80 : 604,493,143.20 = 130,366,195.80 : x
  2. Step 2: Convert to fraction form
    402,995,428.80/604,493,143.20 = 130,366,195.80/x
  3. Step 3: Cross multiply
    402,995,428.80x = 604,493,143.20 × 130,366,195.80
  4. Step 4: Simplify right side
    402,995,428.80x = 78,805,471,466,168,640
  5. Step 5: Solve for x
    x = 78,805,471,466,168,640/402,995,428.80
  6. Step 6: Final answer
    x = 195,549,293.70

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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.