Home / 391,999,858.08-588,088,371.78-129,683,793.72

Finding the Fourth Proportional to 391,999,858.08, 588,088,371.78 and 129,683,793.72

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Solution

The fourth proportional to 391,999,858.08, 588,088,371.78 and 129,683,793.72 is: 194,554,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,999,858.08 : 588,088,371.78 = 129,683,793.72 : x
  2. Step 2: Convert to fraction form
    391,999,858.08/588,088,371.78 = 129,683,793.72/x
  3. Step 3: Cross multiply
    391,999,858.08x = 588,088,371.78 × 129,683,793.72
  4. Step 4: Simplify right side
    391,999,858.08x = 76,265,531,095,048,192
  5. Step 5: Solve for x
    x = 76,265,531,095,048,192/391,999,858.08
  6. Step 6: Final answer
    x = 194,554,996.70

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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.