Home / 91,854,004.20-137,792,816.10-45,819,403.80

Finding the Fourth Proportional to 91,854,004.20, 137,792,816.10 and 45,819,403.80

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Solution

The fourth proportional to 91,854,004.20, 137,792,816.10 and 45,819,403.80 is: 68,734,996.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,854,004.20 : 137,792,816.10 = 45,819,403.80 : x
  2. Step 2: Convert to fraction form
    91,854,004.20/137,792,816.10 = 45,819,403.80/x
  3. Step 3: Cross multiply
    91,854,004.20x = 137,792,816.10 × 45,819,403.80
  4. Step 4: Simplify right side
    91,854,004.20x = 6,313,584,681,625,040
  5. Step 5: Solve for x
    x = 6,313,584,681,625,040/91,854,004.20
  6. Step 6: Final answer
    x = 68,734,996.77

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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.