Home / 477,109,218.20-715,663,827.30-331,990,395.80

Finding the Fourth Proportional to 477,109,218.20, 715,663,827.30 and 331,990,395.80

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Solution

The fourth proportional to 477,109,218.20, 715,663,827.30 and 331,990,395.80 is: 497,985,593.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,109,218.20 : 715,663,827.30 = 331,990,395.80 : x
  2. Step 2: Convert to fraction form
    477,109,218.20/715,663,827.30 = 331,990,395.80/x
  3. Step 3: Cross multiply
    477,109,218.20x = 715,663,827.30 × 331,990,395.80
  4. Step 4: Simplify right side
    477,109,218.20x = 237,593,517,285,069,824
  5. Step 5: Solve for x
    x = 237,593,517,285,069,824/477,109,218.20
  6. Step 6: Final answer
    x = 497,985,593.70

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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.