Home / 79,712,034.40-119,792,000.40-69,858,287.20

Finding the Fourth Proportional to 79,712,034.40, 119,792,000.40 and 69,858,287.20

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Solution

The fourth proportional to 79,712,034.40, 119,792,000.40 and 69,858,287.20 is: 104,983,695.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,712,034.40 : 119,792,000.40 = 69,858,287.20 : x
  2. Step 2: Convert to fraction form
    79,712,034.40/119,792,000.40 = 69,858,287.20/x
  3. Step 3: Cross multiply
    79,712,034.40x = 119,792,000.40 × 69,858,287.20
  4. Step 4: Simplify right side
    79,712,034.40x = 8,368,463,968,205,716
  5. Step 5: Solve for x
    x = 8,368,463,968,205,716/79,712,034.40
  6. Step 6: Final answer
    x = 104,983,695.76

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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.