Home / 391,432,000.20-587,148,000.30-118,802,329.80

Finding the Fourth Proportional to 391,432,000.20, 587,148,000.30 and 118,802,329.80

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Solution

The fourth proportional to 391,432,000.20, 587,148,000.30 and 118,802,329.80 is: 178,203,494.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,432,000.20 : 587,148,000.30 = 118,802,329.80 : x
  2. Step 2: Convert to fraction form
    391,432,000.20/587,148,000.30 = 118,802,329.80/x
  3. Step 3: Cross multiply
    391,432,000.20x = 587,148,000.30 × 118,802,329.80
  4. Step 4: Simplify right side
    391,432,000.20x = 69,754,550,373,051,088
  5. Step 5: Solve for x
    x = 69,754,550,373,051,088/391,432,000.20
  6. Step 6: Final answer
    x = 178,203,494.70

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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.