Home / 31,690,180.80-47,493,280.80-28,079,006.40

Finding the Fourth Proportional to 31,690,180.80, 47,493,280.80 and 28,079,006.40

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Solution

The fourth proportional to 31,690,180.80, 47,493,280.80 and 28,079,006.40 is: 42,081,304.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,690,180.80 : 47,493,280.80 = 28,079,006.40 : x
  2. Step 2: Convert to fraction form
    31,690,180.80/47,493,280.80 = 28,079,006.40/x
  3. Step 3: Cross multiply
    31,690,180.80x = 47,493,280.80 × 28,079,006.40
  4. Step 4: Simplify right side
    31,690,180.80x = 1,333,564,135,540,197
  5. Step 5: Solve for x
    x = 1,333,564,135,540,197/31,690,180.80
  6. Step 6: Final answer
    x = 42,081,304.11

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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.