Home / 80,486,117.80-120,729,176.70-74,268,258.10

Finding the Fourth Proportional to 80,486,117.80, 120,729,176.70 and 74,268,258.10

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Solution

The fourth proportional to 80,486,117.80, 120,729,176.70 and 74,268,258.10 is: 111,402,387.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,486,117.80 : 120,729,176.70 = 74,268,258.10 : x
  2. Step 2: Convert to fraction form
    80,486,117.80/120,729,176.70 = 74,268,258.10/x
  3. Step 3: Cross multiply
    80,486,117.80x = 120,729,176.70 × 74,268,258.10
  4. Step 4: Simplify right side
    80,486,117.80x = 8,966,345,655,356,106
  5. Step 5: Solve for x
    x = 8,966,345,655,356,106/80,486,117.80
  6. Step 6: Final answer
    x = 111,402,387.15

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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.