Home / 138,901,116.30-191,669,724.36-80,182,698.48

Finding the Fourth Proportional to 138,901,116.30, 191,669,724.36 and 80,182,698.48

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Solution

The fourth proportional to 138,901,116.30, 191,669,724.36 and 80,182,698.48 is: 110,644,148.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,901,116.30 : 191,669,724.36 = 80,182,698.48 : x
  2. Step 2: Convert to fraction form
    138,901,116.30/191,669,724.36 = 80,182,698.48/x
  3. Step 3: Cross multiply
    138,901,116.30x = 191,669,724.36 × 80,182,698.48
  4. Step 4: Simplify right side
    138,901,116.30x = 15,368,595,716,102,592
  5. Step 5: Solve for x
    x = 15,368,595,716,102,592/138,901,116.30
  6. Step 6: Final answer
    x = 110,644,148.34

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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.