Home / 15,856,729.29-21,881,701.67-8,613,229.77

Finding the Fourth Proportional to 15,856,729.29, 21,881,701.67 and 8,613,229.77

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Solution

The fourth proportional to 15,856,729.29, 21,881,701.67 and 8,613,229.77 is: 11,885,939.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,856,729.29 : 21,881,701.67 = 8,613,229.77 : x
  2. Step 2: Convert to fraction form
    15,856,729.29/21,881,701.67 = 8,613,229.77/x
  3. Step 3: Cross multiply
    15,856,729.29x = 21,881,701.67 × 8,613,229.77
  4. Step 4: Simplify right side
    15,856,729.29x = 188,472,124,199,236.56
  5. Step 5: Solve for x
    x = 188,472,124,199,236.56/15,856,729.29
  6. Step 6: Final answer
    x = 11,885,939.45

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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.