Home / 128,259,927.66-176,993,958.18-69,521,331.61

Finding the Fourth Proportional to 128,259,927.66, 176,993,958.18 and 69,521,331.61

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Solution

The fourth proportional to 128,259,927.66, 176,993,958.18 and 69,521,331.61 is: 95,936,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259,927.66 : 176,993,958.18 = 69,521,331.61 : x
  2. Step 2: Convert to fraction form
    128,259,927.66/176,993,958.18 = 69,521,331.61/x
  3. Step 3: Cross multiply
    128,259,927.66x = 176,993,958.18 × 69,521,331.61
  4. Step 4: Simplify right side
    128,259,927.66x = 12,304,855,659,598,252
  5. Step 5: Solve for x
    x = 12,304,855,659,598,252/128,259,927.66
  6. Step 6: Final answer
    x = 95,936,867.30

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1.5x scale

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.