Home / 128,259,924.66-176,993,954.04-69,521,328.61

Finding the Fourth Proportional to 128,259,924.66, 176,993,954.04 and 69,521,328.61

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Solution

The fourth proportional to 128,259,924.66, 176,993,954.04 and 69,521,328.61 is: 95,936,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259,924.66 : 176,993,954.04 = 69,521,328.61 : x
  2. Step 2: Convert to fraction form
    128,259,924.66/176,993,954.04 = 69,521,328.61/x
  3. Step 3: Cross multiply
    128,259,924.66x = 176,993,954.04 × 69,521,328.61
  4. Step 4: Simplify right side
    128,259,924.66x = 12,304,854,840,616,296
  5. Step 5: Solve for x
    x = 12,304,854,840,616,296/128,259,924.66
  6. Step 6: Final answer
    x = 95,936,863.16

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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.