Home / 120,193,487.88-179,279,689.58-109,159,402.60

Finding the Fourth Proportional to 120,193,487.88, 179,279,689.58 and 109,159,402.60

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Solution

The fourth proportional to 120,193,487.88, 179,279,689.58 and 109,159,402.60 is: 162,821,332.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,193,487.88 : 179,279,689.58 = 109,159,402.60 : x
  2. Step 2: Convert to fraction form
    120,193,487.88/179,279,689.58 = 109,159,402.60/x
  3. Step 3: Cross multiply
    120,193,487.88x = 179,279,689.58 × 109,159,402.60
  4. Step 4: Simplify right side
    120,193,487.88x = 19,570,063,812,690,944
  5. Step 5: Solve for x
    x = 19,570,063,812,690,944/120,193,487.88
  6. Step 6: Final answer
    x = 162,821,332.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.