Home / 20,914,326.98-28,853,343.69-12,640,024.16

Finding the Fourth Proportional to 20,914,326.98, 28,853,343.69 and 12,640,024.16

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Solution

The fourth proportional to 20,914,326.98, 28,853,343.69 and 12,640,024.16 is: 17,438,139.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914,326.98 : 28,853,343.69 = 12,640,024.16 : x
  2. Step 2: Convert to fraction form
    20,914,326.98/28,853,343.69 = 12,640,024.16/x
  3. Step 3: Cross multiply
    20,914,326.98x = 28,853,343.69 × 12,640,024.16
  4. Step 4: Simplify right side
    20,914,326.98x = 364,706,961,417,216.88
  5. Step 5: Solve for x
    x = 364,706,961,417,216.88/20,914,326.98
  6. Step 6: Final answer
    x = 17,438,139.97

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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.