Home / 120,015,943.88-165,588,396.18-75,366,727.88

Finding the Fourth Proportional to 120,015,943.88, 165,588,396.18 and 75,366,727.88

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Solution

The fourth proportional to 120,015,943.88, 165,588,396.18 and 75,366,727.88 is: 103,984,980.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,015,943.88 : 165,588,396.18 = 75,366,727.88 : x
  2. Step 2: Convert to fraction form
    120,015,943.88/165,588,396.18 = 75,366,727.88/x
  3. Step 3: Cross multiply
    120,015,943.88x = 165,588,396.18 × 75,366,727.88
  4. Step 4: Simplify right side
    120,015,943.88x = 12,479,855,594,983,692
  5. Step 5: Solve for x
    x = 12,479,855,594,983,692/120,015,943.88
  6. Step 6: Final answer
    x = 103,984,980.59

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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.