Home / 20,588,948.52-28,416,155.10-11,424,543.72

Finding the Fourth Proportional to 20,588,948.52, 28,416,155.10 and 11,424,543.72

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Solution

The fourth proportional to 20,588,948.52, 28,416,155.10 and 11,424,543.72 is: 15,767,760.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588,948.52 : 28,416,155.10 = 11,424,543.72 : x
  2. Step 2: Convert to fraction form
    20,588,948.52/28,416,155.10 = 11,424,543.72/x
  3. Step 3: Cross multiply
    20,588,948.52x = 28,416,155.10 × 11,424,543.72
  4. Step 4: Simplify right side
    20,588,948.52x = 324,641,606,294,251
  5. Step 5: Solve for x
    x = 324,641,606,294,251/20,588,948.52
  6. Step 6: Final answer
    x = 15,767,760.36

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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.