Home / 13,587,545.88-20,382,425.28-3,872,901.60

Finding the Fourth Proportional to 13,587,545.88, 20,382,425.28 and 3,872,901.60

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Solution

The fourth proportional to 13,587,545.88, 20,382,425.28 and 3,872,901.60 is: 5,809,667.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587,545.88 : 20,382,425.28 = 3,872,901.60 : x
  2. Step 2: Convert to fraction form
    13,587,545.88/20,382,425.28 = 3,872,901.60/x
  3. Step 3: Cross multiply
    13,587,545.88x = 20,382,425.28 × 3,872,901.60
  4. Step 4: Simplify right side
    13,587,545.88x = 78,939,127,478,792.45
  5. Step 5: Solve for x
    x = 78,939,127,478,792.45/13,587,545.88
  6. Step 6: Final answer
    x = 5,809,667.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.