Home / 138,340,278.62-190,909,422.72-75,616,788.52

Finding the Fourth Proportional to 138,340,278.62, 190,909,422.72 and 75,616,788.52

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Solution

The fourth proportional to 138,340,278.62, 190,909,422.72 and 75,616,788.52 is: 104,351,079.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,340,278.62 : 190,909,422.72 = 75,616,788.52 : x
  2. Step 2: Convert to fraction form
    138,340,278.62/190,909,422.72 = 75,616,788.52/x
  3. Step 3: Cross multiply
    138,340,278.62x = 190,909,422.72 × 75,616,788.52
  4. Step 4: Simplify right side
    138,340,278.62x = 14,435,957,443,458,104
  5. Step 5: Solve for x
    x = 14,435,957,443,458,104/138,340,278.62
  6. Step 6: Final answer
    x = 104,351,079.72

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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.