Home / 20,710,578.69-28,580,630.09-11,543,024.61

Finding the Fourth Proportional to 20,710,578.69, 28,580,630.09 and 11,543,024.61

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Solution

The fourth proportional to 20,710,578.69, 28,580,630.09 and 11,543,024.61 is: 15,929,391.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,578.69 : 28,580,630.09 = 11,543,024.61 : x
  2. Step 2: Convert to fraction form
    20,710,578.69/28,580,630.09 = 11,543,024.61/x
  3. Step 3: Cross multiply
    20,710,578.69x = 28,580,630.09 × 11,543,024.61
  4. Step 4: Simplify right side
    20,710,578.69x = 329,906,916,440,461.38
  5. Step 5: Solve for x
    x = 329,906,916,440,461.38/20,710,578.69
  6. Step 6: Final answer
    x = 15,929,391.51

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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.