Home / 31,509,380.80-47,235,559.20-21,929,348.80

Finding the Fourth Proportional to 31,509,380.80, 47,235,559.20 and 21,929,348.80

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Solution

The fourth proportional to 31,509,380.80, 47,235,559.20 and 21,929,348.80 is: 32,874,179.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,509,380.80 : 47,235,559.20 = 21,929,348.80 : x
  2. Step 2: Convert to fraction form
    31,509,380.80/47,235,559.20 = 21,929,348.80/x
  3. Step 3: Cross multiply
    31,509,380.80x = 47,235,559.20 × 21,929,348.80
  4. Step 4: Simplify right side
    31,509,380.80x = 1,035,845,053,459,849
  5. Step 5: Solve for x
    x = 1,035,845,053,459,849/31,509,380.80
  6. Step 6: Final answer
    x = 32,874,179.92

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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.