Home / 391,437,334.70-587,156,002.05-161,287,952.30

Finding the Fourth Proportional to 391,437,334.70, 587,156,002.05 and 161,287,952.30

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Solution

The fourth proportional to 391,437,334.70, 587,156,002.05 and 161,287,952.30 is: 241,931,928.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,437,334.70 : 587,156,002.05 = 161,287,952.30 : x
  2. Step 2: Convert to fraction form
    391,437,334.70/587,156,002.05 = 161,287,952.30/x
  3. Step 3: Cross multiply
    391,437,334.70x = 587,156,002.05 × 161,287,952.30
  4. Step 4: Simplify right side
    391,437,334.70x = 94,701,189,251,299,104
  5. Step 5: Solve for x
    x = 94,701,189,251,299,104/391,437,334.70
  6. Step 6: Final answer
    x = 241,931,928.45

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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.