Home / 12,141,539.80-18,188,690.10-7,334,951.20

Finding the Fourth Proportional to 12,141,539.80, 18,188,690.10 and 7,334,951.20

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Solution

The fourth proportional to 12,141,539.80, 18,188,690.10 and 7,334,951.20 is: 10,988,157.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141,539.80 : 18,188,690.10 = 7,334,951.20 : x
  2. Step 2: Convert to fraction form
    12,141,539.80/18,188,690.10 = 7,334,951.20/x
  3. Step 3: Cross multiply
    12,141,539.80x = 18,188,690.10 × 7,334,951.20
  4. Step 4: Simplify right side
    12,141,539.80x = 133,413,154,275,423.14
  5. Step 5: Solve for x
    x = 133,413,154,275,423.14/12,141,539.80
  6. Step 6: Final answer
    x = 10,988,157.72

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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.