Home / 70,305,168.80-105,419,308.98-55,825,103.78

Finding the Fourth Proportional to 70,305,168.80, 105,419,308.98 and 55,825,103.78

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Solution

The fourth proportional to 70,305,168.80, 105,419,308.98 and 55,825,103.78 is: 83,707,129.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,305,168.80 : 105,419,308.98 = 55,825,103.78 : x
  2. Step 2: Convert to fraction form
    70,305,168.80/105,419,308.98 = 55,825,103.78/x
  3. Step 3: Cross multiply
    70,305,168.80x = 105,419,308.98 × 55,825,103.78
  4. Step 4: Simplify right side
    70,305,168.80x = 5,885,043,864,224,386
  5. Step 5: Solve for x
    x = 5,885,043,864,224,386/70,305,168.80
  6. Step 6: Final answer
    x = 83,707,129.43

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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.