Home / 120,389,964.45-166,139,001.25-65,385,820.95

Finding the Fourth Proportional to 120,389,964.45, 166,139,001.25 and 65,385,820.95

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Solution

The fourth proportional to 120,389,964.45, 166,139,001.25 and 65,385,820.95 is: 90,232,894.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,389,964.45 : 166,139,001.25 = 65,385,820.95 : x
  2. Step 2: Convert to fraction form
    120,389,964.45/166,139,001.25 = 65,385,820.95/x
  3. Step 3: Cross multiply
    120,389,964.45x = 166,139,001.25 × 65,385,820.95
  4. Step 4: Simplify right side
    120,389,964.45x = 10,863,134,988,544,326
  5. Step 5: Solve for x
    x = 10,863,134,988,544,326/120,389,964.45
  6. Step 6: Final answer
    x = 90,232,894.73

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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.