Home / 20,784,711.30-31,177,066.95-15,745,863.30

Finding the Fourth Proportional to 20,784,711.30, 31,177,066.95 and 15,745,863.30

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Solution

The fourth proportional to 20,784,711.30, 31,177,066.95 and 15,745,863.30 is: 23,618,794.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784,711.30 : 31,177,066.95 = 15,745,863.30 : x
  2. Step 2: Convert to fraction form
    20,784,711.30/31,177,066.95 = 15,745,863.30/x
  3. Step 3: Cross multiply
    20,784,711.30x = 31,177,066.95 × 15,745,863.30
  4. Step 4: Simplify right side
    20,784,711.30x = 490,909,834,289,647.94
  5. Step 5: Solve for x
    x = 490,909,834,289,647.94/20,784,711.30
  6. Step 6: Final answer
    x = 23,618,794.95

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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.