Home / 47,942,502.16-71,964,928.86-20,662,257.82

Finding the Fourth Proportional to 47,942,502.16, 71,964,928.86 and 20,662,257.82

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Solution

The fourth proportional to 47,942,502.16, 71,964,928.86 and 20,662,257.82 is: 31,015,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,942,502.16 : 71,964,928.86 = 20,662,257.82 : x
  2. Step 2: Convert to fraction form
    47,942,502.16/71,964,928.86 = 20,662,257.82/x
  3. Step 3: Cross multiply
    47,942,502.16x = 71,964,928.86 × 20,662,257.82
  4. Step 4: Simplify right side
    47,942,502.16x = 1,486,957,914,103,278.75
  5. Step 5: Solve for x
    x = 1,486,957,914,103,278.75/47,942,502.16
  6. Step 6: Final answer
    x = 31,015,442.40

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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.