Home / 129,345,078.30-194,017,617.45-61,320,630.30

Finding the Fourth Proportional to 129,345,078.30, 194,017,617.45 and 61,320,630.30

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Solution

The fourth proportional to 129,345,078.30, 194,017,617.45 and 61,320,630.30 is: 91,980,945.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,345,078.30 : 194,017,617.45 = 61,320,630.30 : x
  2. Step 2: Convert to fraction form
    129,345,078.30/194,017,617.45 = 61,320,630.30/x
  3. Step 3: Cross multiply
    129,345,078.30x = 194,017,617.45 × 61,320,630.30
  4. Step 4: Simplify right side
    129,345,078.30x = 11,897,282,591,338,278
  5. Step 5: Solve for x
    x = 11,897,282,591,338,278/129,345,078.30
  6. Step 6: Final answer
    x = 91,980,945.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.