Home / 120,582,476.72-166,400,254.20-68,376,278.96

Finding the Fourth Proportional to 120,582,476.72, 166,400,254.20 and 68,376,278.96

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Solution

The fourth proportional to 120,582,476.72, 166,400,254.20 and 68,376,278.96 is: 94,357,244.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,582,476.72 : 166,400,254.20 = 68,376,278.96 : x
  2. Step 2: Convert to fraction form
    120,582,476.72/166,400,254.20 = 68,376,278.96/x
  3. Step 3: Cross multiply
    120,582,476.72x = 166,400,254.20 × 68,376,278.96
  4. Step 4: Simplify right side
    120,582,476.72x = 11,377,830,200,194,110
  5. Step 5: Solve for x
    x = 11,377,830,200,194,110/120,582,476.72
  6. Step 6: Final answer
    x = 94,357,244.18

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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.