Home / 91,854,001.20-137,792,811.60-45,819,400.80

Finding the Fourth Proportional to 91,854,001.20, 137,792,811.60 and 45,819,400.80

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Solution

The fourth proportional to 91,854,001.20, 137,792,811.60 and 45,819,400.80 is: 68,734,992.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,854,001.20 : 137,792,811.60 = 45,819,400.80 : x
  2. Step 2: Convert to fraction form
    91,854,001.20/137,792,811.60 = 45,819,400.80/x
  3. Step 3: Cross multiply
    91,854,001.20x = 137,792,811.60 × 45,819,400.80
  4. Step 4: Simplify right side
    91,854,001.20x = 6,313,584,062,059,289
  5. Step 5: Solve for x
    x = 6,313,584,062,059,289/91,854,001.20
  6. Step 6: Final answer
    x = 68,734,992.27

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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.