Home / 747,346,499.20-1,121,019,748.80-398,668,059.10

Finding the Fourth Proportional to 747,346,499.20, 1,121,019,748.80 and 398,668,059.10

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Solution

The fourth proportional to 747,346,499.20, 1,121,019,748.80 and 398,668,059.10 is: 598,002,088.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,346,499.20 : 1,121,019,748.80 = 398,668,059.10 : x
  2. Step 2: Convert to fraction form
    747,346,499.20/1,121,019,748.80 = 398,668,059.10/x
  3. Step 3: Cross multiply
    747,346,499.20x = 1,121,019,748.80 × 398,668,059.10
  4. Step 4: Simplify right side
    747,346,499.20x = 446,914,767,466,865,536
  5. Step 5: Solve for x
    x = 446,914,767,466,865,536/747,346,499.20
  6. Step 6: Final answer
    x = 598,002,088.65

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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.