Home / 118,687,062.80-178,030,594.20-72,770,560.40

Finding the Fourth Proportional to 118,687,062.80, 178,030,594.20 and 72,770,560.40

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Solution

The fourth proportional to 118,687,062.80, 178,030,594.20 and 72,770,560.40 is: 109,155,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,687,062.80 : 178,030,594.20 = 72,770,560.40 : x
  2. Step 2: Convert to fraction form
    118,687,062.80/178,030,594.20 = 72,770,560.40/x
  3. Step 3: Cross multiply
    118,687,062.80x = 178,030,594.20 × 72,770,560.40
  4. Step 4: Simplify right side
    118,687,062.80x = 12,955,386,108,278,990
  5. Step 5: Solve for x
    x = 12,955,386,108,278,990/118,687,062.80
  6. Step 6: Final answer
    x = 109,155,840.60

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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.