Home / 20,785,614.30-31,161,832.65-8,808,500.70

Finding the Fourth Proportional to 20,785,614.30, 31,161,832.65 and 8,808,500.70

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Solution

The fourth proportional to 20,785,614.30, 31,161,832.65 and 8,808,500.70 is: 13,205,721.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,614.30 : 31,161,832.65 = 8,808,500.70 : x
  2. Step 2: Convert to fraction form
    20,785,614.30/31,161,832.65 = 8,808,500.70/x
  3. Step 3: Cross multiply
    20,785,614.30x = 31,161,832.65 × 8,808,500.70
  4. Step 4: Simplify right side
    20,785,614.30x = 274,489,024,710,807.81
  5. Step 5: Solve for x
    x = 274,489,024,710,807.81/20,785,614.30
  6. Step 6: Final answer
    x = 13,205,721.07

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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.