Home / 82,692,138.96-124,037,367.30-21,281,058.90

Finding the Fourth Proportional to 82,692,138.96, 124,037,367.30 and 21,281,058.90

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Solution

The fourth proportional to 82,692,138.96, 124,037,367.30 and 21,281,058.90 is: 31,921,371.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,692,138.96 : 124,037,367.30 = 21,281,058.90 : x
  2. Step 2: Convert to fraction form
    82,692,138.96/124,037,367.30 = 21,281,058.90/x
  3. Step 3: Cross multiply
    82,692,138.96x = 124,037,367.30 × 21,281,058.90
  4. Step 4: Simplify right side
    82,692,138.96x = 2,639,646,519,312,233.50
  5. Step 5: Solve for x
    x = 2,639,646,519,312,233.50/82,692,138.96
  6. Step 6: Final answer
    x = 31,921,371.88

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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.