Home / 20,747,236.65-31,120,854.98-10,543,569.45

Finding the Fourth Proportional to 20,747,236.65, 31,120,854.98 and 10,543,569.45

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Solution

The fourth proportional to 20,747,236.65, 31,120,854.98 and 10,543,569.45 is: 15,815,354.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747,236.65 : 31,120,854.98 = 10,543,569.45 : x
  2. Step 2: Convert to fraction form
    20,747,236.65/31,120,854.98 = 10,543,569.45/x
  3. Step 3: Cross multiply
    20,747,236.65x = 31,120,854.98 × 10,543,569.45
  4. Step 4: Simplify right side
    20,747,236.65x = 328,124,895,772,290.50
  5. Step 5: Solve for x
    x = 328,124,895,772,290.50/20,747,236.65
  6. Step 6: Final answer
    x = 15,815,354.18

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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.