Home / 28,086,379.12-38,760,400.20-15,696,472.19

Finding the Fourth Proportional to 28,086,379.12, 38,760,400.20 and 15,696,472.19

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Solution

The fourth proportional to 28,086,379.12, 38,760,400.20 and 15,696,472.19 is: 21,661,800.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086,379.12 : 38,760,400.20 = 15,696,472.19 : x
  2. Step 2: Convert to fraction form
    28,086,379.12/38,760,400.20 = 15,696,472.19/x
  3. Step 3: Cross multiply
    28,086,379.12x = 38,760,400.20 × 15,696,472.19
  4. Step 4: Simplify right side
    28,086,379.12x = 608,401,543,677,630.25
  5. Step 5: Solve for x
    x = 608,401,543,677,630.25/28,086,379.12
  6. Step 6: Final answer
    x = 21,661,800.58

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1.5x scale

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.