Home / 128,065,278.14-176,730,046.32-69,327,899.72

Finding the Fourth Proportional to 128,065,278.14, 176,730,046.32 and 69,327,899.72

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Solution

The fourth proportional to 128,065,278.14, 176,730,046.32 and 69,327,899.72 is: 95,672,481.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,065,278.14 : 176,730,046.32 = 69,327,899.72 : x
  2. Step 2: Convert to fraction form
    128,065,278.14/176,730,046.32 = 69,327,899.72/x
  3. Step 3: Cross multiply
    128,065,278.14x = 176,730,046.32 × 69,327,899.72
  4. Step 4: Simplify right side
    128,065,278.14x = 12,252,322,928,783,914
  5. Step 5: Solve for x
    x = 12,252,322,928,783,914/128,065,278.14
  6. Step 6: Final answer
    x = 95,672,481.31

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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.