Home / 15,853,434.42-21,877,781.49-9,327,309.78

Finding the Fourth Proportional to 15,853,434.42, 21,877,781.49 and 9,327,309.78

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Solution

The fourth proportional to 15,853,434.42, 21,877,781.49 and 9,327,309.78 is: 12,871,712.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,853,434.42 : 21,877,781.49 = 9,327,309.78 : x
  2. Step 2: Convert to fraction form
    15,853,434.42/21,877,781.49 = 9,327,309.78/x
  3. Step 3: Cross multiply
    15,853,434.42x = 21,877,781.49 × 9,327,309.78
  4. Step 4: Simplify right side
    15,853,434.42x = 204,060,845,256,379.94
  5. Step 5: Solve for x
    x = 204,060,845,256,379.94/15,853,434.42
  6. Step 6: Final answer
    x = 12,871,712.20

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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.