Home / 438,286,712.32-657,274,997.19-127,329,634.55

Finding the Fourth Proportional to 438,286,712.32, 657,274,997.19 and 127,329,634.55

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Solution

The fourth proportional to 438,286,712.32, 657,274,997.19 and 127,329,634.55 is: 190,949,401.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,286,712.32 : 657,274,997.19 = 127,329,634.55 : x
  2. Step 2: Convert to fraction form
    438,286,712.32/657,274,997.19 = 127,329,634.55/x
  3. Step 3: Cross multiply
    438,286,712.32x = 657,274,997.19 × 127,329,634.55
  4. Step 4: Simplify right side
    438,286,712.32x = 83,690,585,188,753,216
  5. Step 5: Solve for x
    x = 83,690,585,188,753,216/438,286,712.32
  6. Step 6: Final answer
    x = 190,949,401.01

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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.