Home / 140,703,878.62-194,171,370.90-77,984,025.88

Finding the Fourth Proportional to 140,703,878.62, 194,171,370.90 and 77,984,025.88

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Solution

The fourth proportional to 140,703,878.62, 194,171,370.90 and 77,984,025.88 is: 107,617,965.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,703,878.62 : 194,171,370.90 = 77,984,025.88 : x
  2. Step 2: Convert to fraction form
    140,703,878.62/194,171,370.90 = 77,984,025.88/x
  3. Step 3: Cross multiply
    140,703,878.62x = 194,171,370.90 × 77,984,025.88
  4. Step 4: Simplify right side
    140,703,878.62x = 15,142,265,213,420,678
  5. Step 5: Solve for x
    x = 15,142,265,213,420,678/140,703,878.62
  6. Step 6: Final answer
    x = 107,617,965.91

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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.