Home / 126,376,371.90-189,564,557.85-103,418,120.70

Finding the Fourth Proportional to 126,376,371.90, 189,564,557.85 and 103,418,120.70

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Solution

The fourth proportional to 126,376,371.90, 189,564,557.85 and 103,418,120.70 is: 155,127,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,376,371.90 : 189,564,557.85 = 103,418,120.70 : x
  2. Step 2: Convert to fraction form
    126,376,371.90/189,564,557.85 = 103,418,120.70/x
  3. Step 3: Cross multiply
    126,376,371.90x = 189,564,557.85 × 103,418,120.70
  4. Step 4: Simplify right side
    126,376,371.90x = 19,604,410,324,173,432
  5. Step 5: Solve for x
    x = 19,604,410,324,173,432/126,376,371.90
  6. Step 6: Final answer
    x = 155,127,181.05

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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.