Home / 128,006,919.47-176,650,013.88-69,269,578.17

Finding the Fourth Proportional to 128,006,919.47, 176,650,013.88 and 69,269,578.17

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Solution

The fourth proportional to 128,006,919.47, 176,650,013.88 and 69,269,578.17 is: 95,592,269.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,006,919.47 : 176,650,013.88 = 69,269,578.17 : x
  2. Step 2: Convert to fraction form
    128,006,919.47/176,650,013.88 = 69,269,578.17/x
  3. Step 3: Cross multiply
    128,006,919.47x = 176,650,013.88 × 69,269,578.17
  4. Step 4: Simplify right side
    128,006,919.47x = 12,236,471,945,192,244
  5. Step 5: Solve for x
    x = 12,236,471,945,192,244/128,006,919.47
  6. Step 6: Final answer
    x = 95,592,269.51

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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.