Home / 128,065,807.73-176,730,871.68-69,328,470.94

Finding the Fourth Proportional to 128,065,807.73, 176,730,871.68 and 69,328,470.94

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Solution

The fourth proportional to 128,065,807.73, 176,730,871.68 and 69,328,470.94 is: 95,673,320.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,065,807.73 : 176,730,871.68 = 69,328,470.94 : x
  2. Step 2: Convert to fraction form
    128,065,807.73/176,730,871.68 = 69,328,470.94/x
  3. Step 3: Cross multiply
    128,065,807.73x = 176,730,871.68 × 69,328,470.94
  4. Step 4: Simplify right side
    128,065,807.73x = 12,252,481,101,025,922
  5. Step 5: Solve for x
    x = 12,252,481,101,025,922/128,065,807.73
  6. Step 6: Final answer
    x = 95,673,320.76

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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.