Home / 83,649,007.20-125,473,510.80-66,430,318.80

Finding the Fourth Proportional to 83,649,007.20, 125,473,510.80 and 66,430,318.80

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Solution

The fourth proportional to 83,649,007.20, 125,473,510.80 and 66,430,318.80 is: 99,645,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,649,007.20 : 125,473,510.80 = 66,430,318.80 : x
  2. Step 2: Convert to fraction form
    83,649,007.20/125,473,510.80 = 66,430,318.80/x
  3. Step 3: Cross multiply
    83,649,007.20x = 125,473,510.80 × 66,430,318.80
  4. Step 4: Simplify right side
    83,649,007.20x = 8,335,245,323,399,242
  5. Step 5: Solve for x
    x = 8,335,245,323,399,242/83,649,007.20
  6. Step 6: Final answer
    x = 99,645,478.20

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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.