Home / 128,007,169.70-176,650,360.07-69,269,829.44

Finding the Fourth Proportional to 128,007,169.70, 176,650,360.07 and 69,269,829.44

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Solution

The fourth proportional to 128,007,169.70, 176,650,360.07 and 69,269,829.44 is: 95,592,616.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,007,169.70 : 176,650,360.07 = 69,269,829.44 : x
  2. Step 2: Convert to fraction form
    128,007,169.70/176,650,360.07 = 69,269,829.44/x
  3. Step 3: Cross multiply
    128,007,169.70x = 176,650,360.07 × 69,269,829.44
  4. Step 4: Simplify right side
    128,007,169.70x = 12,236,540,311,333,886
  5. Step 5: Solve for x
    x = 12,236,540,311,333,886/128,007,169.70
  6. Step 6: Final answer
    x = 95,592,616.73

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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.