Home / 639,387,426.87-882,354,294.50-360,931,355.19

Finding the Fourth Proportional to 639,387,426.87, 882,354,294.50 and 360,931,355.19

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Solution

The fourth proportional to 639,387,426.87, 882,354,294.50 and 360,931,355.19 is: 498,085,070.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,387,426.87 : 882,354,294.50 = 360,931,355.19 : x
  2. Step 2: Convert to fraction form
    639,387,426.87/882,354,294.50 = 360,931,355.19/x
  3. Step 3: Cross multiply
    639,387,426.87x = 882,354,294.50 × 360,931,355.19
  4. Step 4: Simplify right side
    639,387,426.87x = 318,469,331,269,796,736
  5. Step 5: Solve for x
    x = 318,469,331,269,796,736/639,387,426.87
  6. Step 6: Final answer
    x = 498,085,070.00

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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.