Home / 217,818,486.60-326,601,758.70-81,517,648.20

Finding the Fourth Proportional to 217,818,486.60, 326,601,758.70 and 81,517,648.20

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Solution

The fourth proportional to 217,818,486.60, 326,601,758.70 and 81,517,648.20 is: 122,229,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,818,486.60 : 326,601,758.70 = 81,517,648.20 : x
  2. Step 2: Convert to fraction form
    217,818,486.60/326,601,758.70 = 81,517,648.20/x
  3. Step 3: Cross multiply
    217,818,486.60x = 326,601,758.70 × 81,517,648.20
  4. Step 4: Simplify right side
    217,818,486.60x = 26,623,807,267,207,888
  5. Step 5: Solve for x
    x = 26,623,807,267,207,888/217,818,486.60
  6. Step 6: Final answer
    x = 122,229,328.11

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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.