Home / 20,191,904.40-30,288,471.60-7,895,376.84

Finding the Fourth Proportional to 20,191,904.40, 30,288,471.60 and 7,895,376.84

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Solution

The fourth proportional to 20,191,904.40, 30,288,471.60 and 7,895,376.84 is: 11,843,305.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191,904.40 : 30,288,471.60 = 7,895,376.84 : x
  2. Step 2: Convert to fraction form
    20,191,904.40/30,288,471.60 = 7,895,376.84/x
  3. Step 3: Cross multiply
    20,191,904.40x = 30,288,471.60 × 7,895,376.84
  4. Step 4: Simplify right side
    20,191,904.40x = 239,138,897,189,637.75
  5. Step 5: Solve for x
    x = 239,138,897,189,637.75/20,191,904.40
  6. Step 6: Final answer
    x = 11,843,305.74

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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.