Home / 20,404,534.14-28,157,916.87-11,238,029.82

Finding the Fourth Proportional to 20,404,534.14, 28,157,916.87 and 11,238,029.82

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Solution

The fourth proportional to 20,404,534.14, 28,157,916.87 and 11,238,029.82 is: 15,508,293.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404,534.14 : 28,157,916.87 = 11,238,029.82 : x
  2. Step 2: Convert to fraction form
    20,404,534.14/28,157,916.87 = 11,238,029.82/x
  3. Step 3: Cross multiply
    20,404,534.14x = 28,157,916.87 × 11,238,029.82
  4. Step 4: Simplify right side
    20,404,534.14x = 316,439,509,454,141.06
  5. Step 5: Solve for x
    x = 316,439,509,454,141.06/20,404,534.14
  6. Step 6: Final answer
    x = 15,508,293.76

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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.