Home / 79,719,309.40-119,578,964.10-60,445,715.80

Finding the Fourth Proportional to 79,719,309.40, 119,578,964.10 and 60,445,715.80

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Solution

The fourth proportional to 79,719,309.40, 119,578,964.10 and 60,445,715.80 is: 90,668,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,719,309.40 : 119,578,964.10 = 60,445,715.80 : x
  2. Step 2: Convert to fraction form
    79,719,309.40/119,578,964.10 = 60,445,715.80/x
  3. Step 3: Cross multiply
    79,719,309.40x = 119,578,964.10 × 60,445,715.80
  4. Step 4: Simplify right side
    79,719,309.40x = 7,228,036,079,647,002
  5. Step 5: Solve for x
    x = 7,228,036,079,647,002/79,719,309.40
  6. Step 6: Final answer
    x = 90,668,573.70

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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.