Home / 138,526,853.78-191,083,766.36-91,484,360.12

Finding the Fourth Proportional to 138,526,853.78, 191,083,766.36 and 91,484,360.12

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Solution

The fourth proportional to 138,526,853.78, 191,083,766.36 and 91,484,360.12 is: 126,193,410.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,526,853.78 : 191,083,766.36 = 91,484,360.12 : x
  2. Step 2: Convert to fraction form
    138,526,853.78/191,083,766.36 = 91,484,360.12/x
  3. Step 3: Cross multiply
    138,526,853.78x = 191,083,766.36 × 91,484,360.12
  4. Step 4: Simplify right side
    138,526,853.78x = 17,481,176,094,764,184
  5. Step 5: Solve for x
    x = 17,481,176,094,764,184/138,526,853.78
  6. Step 6: Final answer
    x = 126,193,410.29

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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.