Home / 72,147,209.22-99,645,891.66-47,477,528.80

Finding the Fourth Proportional to 72,147,209.22, 99,645,891.66 and 47,477,528.80

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Solution

The fourth proportional to 72,147,209.22, 99,645,891.66 and 47,477,528.80 is: 65,573,439.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,147,209.22 : 99,645,891.66 = 47,477,528.80 : x
  2. Step 2: Convert to fraction form
    72,147,209.22/99,645,891.66 = 47,477,528.80/x
  3. Step 3: Cross multiply
    72,147,209.22x = 99,645,891.66 × 47,477,528.80
  4. Step 4: Simplify right side
    72,147,209.22x = 4,730,940,690,840,215
  5. Step 5: Solve for x
    x = 4,730,940,690,840,215/72,147,209.22
  6. Step 6: Final answer
    x = 65,573,439.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.