Home / 178,517,080.40-267,649,649.40-81,519,256.40

Finding the Fourth Proportional to 178,517,080.40, 267,649,649.40 and 81,519,256.40

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Solution

The fourth proportional to 178,517,080.40, 267,649,649.40 and 81,519,256.40 is: 122,221,360.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,517,080.40 : 267,649,649.40 = 81,519,256.40 : x
  2. Step 2: Convert to fraction form
    178,517,080.40/267,649,649.40 = 81,519,256.40/x
  3. Step 3: Cross multiply
    178,517,080.40x = 267,649,649.40 × 81,519,256.40
  4. Step 4: Simplify right side
    178,517,080.40x = 21,818,600,394,808,708
  5. Step 5: Solve for x
    x = 21,818,600,394,808,708/178,517,080.40
  6. Step 6: Final answer
    x = 122,221,360.25

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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.