Home / 642,744,423.92-886,997,023.62-360,549,419.24

Finding the Fourth Proportional to 642,744,423.92, 886,997,023.62 and 360,549,419.24

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Solution

The fourth proportional to 642,744,423.92, 886,997,023.62 and 360,549,419.24 is: 497,563,650.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,744,423.92 : 886,997,023.62 = 360,549,419.24 : x
  2. Step 2: Convert to fraction form
    642,744,423.92/886,997,023.62 = 360,549,419.24/x
  3. Step 3: Cross multiply
    642,744,423.92x = 886,997,023.62 × 360,549,419.24
  4. Step 4: Simplify right side
    642,744,423.92x = 319,806,261,733,799,552
  5. Step 5: Solve for x
    x = 319,806,261,733,799,552/642,744,423.92
  6. Step 6: Final answer
    x = 497,563,650.23

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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.