Home / 27,578,315.60-38,057,611.20-15,189,562.70

Finding the Fourth Proportional to 27,578,315.60, 38,057,611.20 and 15,189,562.70

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Solution

The fourth proportional to 27,578,315.60, 38,057,611.20 and 15,189,562.70 is: 20,961,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,578,315.60 : 38,057,611.20 = 15,189,562.70 : x
  2. Step 2: Convert to fraction form
    27,578,315.60/38,057,611.20 = 15,189,562.70/x
  3. Step 3: Cross multiply
    27,578,315.60x = 38,057,611.20 × 15,189,562.70
  4. Step 4: Simplify right side
    27,578,315.60x = 578,078,471,344,334.25
  5. Step 5: Solve for x
    x = 578,078,471,344,334.25/27,578,315.60
  6. Step 6: Final answer
    x = 20,961,340.78

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1.5x scale

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.