Home / 13,581,998.38-18,737,626.56-7,700,393.98

Finding the Fourth Proportional to 13,581,998.38, 18,737,626.56 and 7,700,393.98

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Solution

The fourth proportional to 13,581,998.38, 18,737,626.56 and 7,700,393.98 is: 10,623,407.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581,998.38 : 18,737,626.56 = 7,700,393.98 : x
  2. Step 2: Convert to fraction form
    13,581,998.38/18,737,626.56 = 7,700,393.98/x
  3. Step 3: Cross multiply
    13,581,998.38x = 18,737,626.56 × 7,700,393.98
  4. Step 4: Simplify right side
    13,581,998.38x = 144,287,106,762,112.09
  5. Step 5: Solve for x
    x = 144,287,106,762,112.09/13,581,998.38
  6. Step 6: Final answer
    x = 10,623,407.74

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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.