Home / 31,377,340.80-47,068,724.16-8,658,239.04

Finding the Fourth Proportional to 31,377,340.80, 47,068,724.16 and 8,658,239.04

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Solution

The fourth proportional to 31,377,340.80, 47,068,724.16 and 8,658,239.04 is: 12,988,107.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,377,340.80 : 47,068,724.16 = 8,658,239.04 : x
  2. Step 2: Convert to fraction form
    31,377,340.80/47,068,724.16 = 8,658,239.04/x
  3. Step 3: Cross multiply
    31,377,340.80x = 47,068,724.16 × 8,658,239.04
  4. Step 4: Simplify right side
    31,377,340.80x = 407,532,265,085,103.12
  5. Step 5: Solve for x
    x = 407,532,265,085,103.12/31,377,340.80
  6. Step 6: Final answer
    x = 12,988,107.17

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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.