Home / 79,290,191.70-118,935,287.55-55,103,721.30

Finding the Fourth Proportional to 79,290,191.70, 118,935,287.55 and 55,103,721.30

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Solution

The fourth proportional to 79,290,191.70, 118,935,287.55 and 55,103,721.30 is: 82,655,581.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,290,191.70 : 118,935,287.55 = 55,103,721.30 : x
  2. Step 2: Convert to fraction form
    79,290,191.70/118,935,287.55 = 55,103,721.30/x
  3. Step 3: Cross multiply
    79,290,191.70x = 118,935,287.55 × 55,103,721.30
  4. Step 4: Simplify right side
    79,290,191.70x = 6,553,776,937,890,559
  5. Step 5: Solve for x
    x = 6,553,776,937,890,559/79,290,191.70
  6. Step 6: Final answer
    x = 82,655,581.95

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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.