Home / 642,744,376.86-886,996,958.76-360,549,372.12

Finding the Fourth Proportional to 642,744,376.86, 886,996,958.76 and 360,549,372.12

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Solution

The fourth proportional to 642,744,376.86, 886,996,958.76 and 360,549,372.12 is: 497,563,585.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,744,376.86 : 886,996,958.76 = 360,549,372.12 : x
  2. Step 2: Convert to fraction form
    642,744,376.86/886,996,958.76 = 360,549,372.12/x
  3. Step 3: Cross multiply
    642,744,376.86x = 886,996,958.76 × 360,549,372.12
  4. Step 4: Simplify right side
    642,744,376.86x = 319,806,196,553,267,520
  5. Step 5: Solve for x
    x = 319,806,196,553,267,520/642,744,376.86
  6. Step 6: Final answer
    x = 497,563,585.26

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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.