Home / 20,812,124.75-28,721,501.13-11,393,575.97

Finding the Fourth Proportional to 20,812,124.75, 28,721,501.13 and 11,393,575.97

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Solution

The fourth proportional to 20,812,124.75, 28,721,501.13 and 11,393,575.97 is: 15,723,555.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,812,124.75 : 28,721,501.13 = 11,393,575.97 : x
  2. Step 2: Convert to fraction form
    20,812,124.75/28,721,501.13 = 11,393,575.97/x
  3. Step 3: Cross multiply
    20,812,124.75x = 28,721,501.13 × 11,393,575.97
  4. Step 4: Simplify right side
    20,812,124.75x = 327,240,604,996,214.25
  5. Step 5: Solve for x
    x = 327,240,604,996,214.25/20,812,124.75
  6. Step 6: Final answer
    x = 15,723,555.81

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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.