Home / 391,141,333.80-586,712,000.70-132,364,996.20

Finding the Fourth Proportional to 391,141,333.80, 586,712,000.70 and 132,364,996.20

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Solution

The fourth proportional to 391,141,333.80, 586,712,000.70 and 132,364,996.20 is: 198,547,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,141,333.80 : 586,712,000.70 = 132,364,996.20 : x
  2. Step 2: Convert to fraction form
    391,141,333.80/586,712,000.70 = 132,364,996.20/x
  3. Step 3: Cross multiply
    391,141,333.80x = 586,712,000.70 × 132,364,996.20
  4. Step 4: Simplify right side
    391,141,333.80x = 77,660,131,743,149,904
  5. Step 5: Solve for x
    x = 77,660,131,743,149,904/391,141,333.80
  6. Step 6: Final answer
    x = 198,547,494.30

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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.