Home / 138,612,657.44-191,287,722.84-75,887,696.72

Finding the Fourth Proportional to 138,612,657.44, 191,287,722.84 and 75,887,696.72

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Solution

The fourth proportional to 138,612,657.44, 191,287,722.84 and 75,887,696.72 is: 104,726,256.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,612,657.44 : 191,287,722.84 = 75,887,696.72 : x
  2. Step 2: Convert to fraction form
    138,612,657.44/191,287,722.84 = 75,887,696.72/x
  3. Step 3: Cross multiply
    138,612,657.44x = 191,287,722.84 × 75,887,696.72
  4. Step 4: Simplify right side
    138,612,657.44x = 14,516,384,697,141,338
  5. Step 5: Solve for x
    x = 14,516,384,697,141,338/138,612,657.44
  6. Step 6: Final answer
    x = 104,726,256.36

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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.