Home / 217,836,001.10-326,754,001.65-81,503,669.90

Finding the Fourth Proportional to 217,836,001.10, 326,754,001.65 and 81,503,669.90

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Solution

The fourth proportional to 217,836,001.10, 326,754,001.65 and 81,503,669.90 is: 122,255,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,836,001.10 : 326,754,001.65 = 81,503,669.90 : x
  2. Step 2: Convert to fraction form
    217,836,001.10/326,754,001.65 = 81,503,669.90/x
  3. Step 3: Cross multiply
    217,836,001.10x = 326,754,001.65 × 81,503,669.90
  4. Step 4: Simplify right side
    217,836,001.10x = 26,631,650,288,985,656
  5. Step 5: Solve for x
    x = 26,631,650,288,985,656/217,836,001.10
  6. Step 6: Final answer
    x = 122,255,504.85

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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.