Home / 140,822,971.88-194,347,335.11-78,119,286.26

Finding the Fourth Proportional to 140,822,971.88, 194,347,335.11 and 78,119,286.26

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Solution

The fourth proportional to 140,822,971.88, 194,347,335.11 and 78,119,286.26 is: 107,811,068.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,822,971.88 : 194,347,335.11 = 78,119,286.26 : x
  2. Step 2: Convert to fraction form
    140,822,971.88/194,347,335.11 = 78,119,286.26/x
  3. Step 3: Cross multiply
    140,822,971.88x = 194,347,335.11 × 78,119,286.26
  4. Step 4: Simplify right side
    140,822,971.88x = 15,182,275,103,963,904
  5. Step 5: Solve for x
    x = 15,182,275,103,963,904/140,822,971.88
  6. Step 6: Final answer
    x = 107,811,068.76

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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.