Home / 84,240,916.88-126,361,375.31-20,415,508.88

Finding the Fourth Proportional to 84,240,916.88, 126,361,375.31 and 20,415,508.88

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Solution

The fourth proportional to 84,240,916.88, 126,361,375.31 and 20,415,508.88 is: 30,623,263.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,240,916.88 : 126,361,375.31 = 20,415,508.88 : x
  2. Step 2: Convert to fraction form
    84,240,916.88/126,361,375.31 = 20,415,508.88/x
  3. Step 3: Cross multiply
    84,240,916.88x = 126,361,375.31 × 20,415,508.88
  4. Step 4: Simplify right side
    84,240,916.88x = 2,579,731,779,149,549.50
  5. Step 5: Solve for x
    x = 2,579,731,779,149,549.50/84,240,916.88
  6. Step 6: Final answer
    x = 30,623,263.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.