Home / 86,629,169.46-129,856,315.52-54,303,772.40

Finding the Fourth Proportional to 86,629,169.46, 129,856,315.52 and 54,303,772.40

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Solution

The fourth proportional to 86,629,169.46, 129,856,315.52 and 54,303,772.40 is: 81,400,847.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,629,169.46 : 129,856,315.52 = 54,303,772.40 : x
  2. Step 2: Convert to fraction form
    86,629,169.46/129,856,315.52 = 54,303,772.40/x
  3. Step 3: Cross multiply
    86,629,169.46x = 129,856,315.52 × 54,303,772.40
  4. Step 4: Simplify right side
    86,629,169.46x = 7,051,687,802,753,790
  5. Step 5: Solve for x
    x = 7,051,687,802,753,790/86,629,169.46
  6. Step 6: Final answer
    x = 81,400,847.39

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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.