Home / 81,082,618.74-121,639,576.10-26,480,525.13

Finding the Fourth Proportional to 81,082,618.74, 121,639,576.10 and 26,480,525.13

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Solution

The fourth proportional to 81,082,618.74, 121,639,576.10 and 26,480,525.13 is: 39,725,898.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,082,618.74 : 121,639,576.10 = 26,480,525.13 : x
  2. Step 2: Convert to fraction form
    81,082,618.74/121,639,576.10 = 26,480,525.13/x
  3. Step 3: Cross multiply
    81,082,618.74x = 121,639,576.10 × 26,480,525.13
  4. Step 4: Simplify right side
    81,082,618.74x = 3,221,079,851,586,194.50
  5. Step 5: Solve for x
    x = 3,221,079,851,586,194.50/81,082,618.74
  6. Step 6: Final answer
    x = 39,725,898.12

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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.