Home / 12,641,184.60-17,438,407.94-7,678,305.28

Finding the Fourth Proportional to 12,641,184.60, 17,438,407.94 and 7,678,305.28

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Solution

The fourth proportional to 12,641,184.60, 17,438,407.94 and 7,678,305.28 is: 10,592,157.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641,184.60 : 17,438,407.94 = 7,678,305.28 : x
  2. Step 2: Convert to fraction form
    12,641,184.60/17,438,407.94 = 7,678,305.28/x
  3. Step 3: Cross multiply
    12,641,184.60x = 17,438,407.94 × 7,678,305.28
  4. Step 4: Simplify right side
    12,641,184.60x = 133,897,419,760,495.94
  5. Step 5: Solve for x
    x = 133,897,419,760,495.94/12,641,184.60
  6. Step 6: Final answer
    x = 10,592,157.62

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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.