Home / 28,086,379.56-38,760,400.80-15,696,472.62

Finding the Fourth Proportional to 28,086,379.56, 38,760,400.80 and 15,696,472.62

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Solution

The fourth proportional to 28,086,379.56, 38,760,400.80 and 15,696,472.62 is: 21,661,801.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086,379.56 : 38,760,400.80 = 15,696,472.62 : x
  2. Step 2: Convert to fraction form
    28,086,379.56/38,760,400.80 = 15,696,472.62/x
  3. Step 3: Cross multiply
    28,086,379.56x = 38,760,400.80 × 15,696,472.62
  4. Step 4: Simplify right side
    28,086,379.56x = 608,401,569,897,426
  5. Step 5: Solve for x
    x = 608,401,569,897,426/28,086,379.56
  6. Step 6: Final answer
    x = 21,661,801.18

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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.