Home / 12,141,532.80-18,188,679.60-7,334,944.20

Finding the Fourth Proportional to 12,141,532.80, 18,188,679.60 and 7,334,944.20

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Solution

The fourth proportional to 12,141,532.80, 18,188,679.60 and 7,334,944.20 is: 10,988,147.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141,532.80 : 18,188,679.60 = 7,334,944.20 : x
  2. Step 2: Convert to fraction form
    12,141,532.80/18,188,679.60 = 7,334,944.20/x
  3. Step 3: Cross multiply
    12,141,532.80x = 18,188,679.60 × 7,334,944.20
  4. Step 4: Simplify right side
    12,141,532.80x = 133,412,949,937,678.33
  5. Step 5: Solve for x
    x = 133,412,949,937,678.33/12,141,532.80
  6. Step 6: Final answer
    x = 10,988,147.22

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1.5x scale

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.