Home / 137,240,775.88-189,395,561.20-74,519,517.42

Finding the Fourth Proportional to 137,240,775.88, 189,395,561.20 and 74,519,517.42

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Solution

The fourth proportional to 137,240,775.88, 189,395,561.20 and 74,519,517.42 is: 102,838,720.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,240,775.88 : 189,395,561.20 = 74,519,517.42 : x
  2. Step 2: Convert to fraction form
    137,240,775.88/189,395,561.20 = 74,519,517.42/x
  3. Step 3: Cross multiply
    137,240,775.88x = 189,395,561.20 × 74,519,517.42
  4. Step 4: Simplify right side
    137,240,775.88x = 14,113,665,822,114,076
  5. Step 5: Solve for x
    x = 14,113,665,822,114,076/137,240,775.88
  6. Step 6: Final answer
    x = 102,838,720.72

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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.