Home / 391,103,140.80-586,654,711.20-132,326,803.20

Finding the Fourth Proportional to 391,103,140.80, 586,654,711.20 and 132,326,803.20

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Solution

The fourth proportional to 391,103,140.80, 586,654,711.20 and 132,326,803.20 is: 198,490,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,103,140.80 : 586,654,711.20 = 132,326,803.20 : x
  2. Step 2: Convert to fraction form
    391,103,140.80/586,654,711.20 = 132,326,803.20/x
  3. Step 3: Cross multiply
    391,103,140.80x = 586,654,711.20 × 132,326,803.20
  4. Step 4: Simplify right side
    391,103,140.80x = 77,630,142,515,315,248
  5. Step 5: Solve for x
    x = 77,630,142,515,315,248/391,103,140.80
  6. Step 6: Final answer
    x = 198,490,204.80

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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.