Home / 15,203,709.30-20,981,457.66-8,677,207.80

Finding the Fourth Proportional to 15,203,709.30, 20,981,457.66 and 8,677,207.80

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Solution

The fourth proportional to 15,203,709.30, 20,981,457.66 and 8,677,207.80 is: 11,974,740.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,203,709.30 : 20,981,457.66 = 8,677,207.80 : x
  2. Step 2: Convert to fraction form
    15,203,709.30/20,981,457.66 = 8,677,207.80/x
  3. Step 3: Cross multiply
    15,203,709.30x = 20,981,457.66 × 8,677,207.80
  4. Step 4: Simplify right side
    15,203,709.30x = 182,060,468,062,721.75
  5. Step 5: Solve for x
    x = 182,060,468,062,721.75/15,203,709.30
  6. Step 6: Final answer
    x = 11,974,740.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.