Home / 129,773,222.52-179,087,222-80,880,650.52

Finding the Fourth Proportional to 129,773,222.52, 179,087,222 and 80,880,650.52

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Solution

The fourth proportional to 129,773,222.52, 179,087,222 and 80,880,650.52 is: 111,615,406.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,773,222.52 : 179,087,222 = 80,880,650.52 : x
  2. Step 2: Convert to fraction form
    129,773,222.52/179,087,222 = 80,880,650.52/x
  3. Step 3: Cross multiply
    129,773,222.52x = 179,087,222 × 80,880,650.52
  4. Step 4: Simplify right side
    129,773,222.52x = 14,484,691,015,179,654
  5. Step 5: Solve for x
    x = 14,484,691,015,179,654/129,773,222.52
  6. Step 6: Final answer
    x = 111,615,406.74

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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.