Home / 82,728,139.20-124,092,208.80-22,143,865.20

Finding the Fourth Proportional to 82,728,139.20, 124,092,208.80 and 22,143,865.20

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Solution

The fourth proportional to 82,728,139.20, 124,092,208.80 and 22,143,865.20 is: 33,215,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,728,139.20 : 124,092,208.80 = 22,143,865.20 : x
  2. Step 2: Convert to fraction form
    82,728,139.20/124,092,208.80 = 22,143,865.20/x
  3. Step 3: Cross multiply
    82,728,139.20x = 124,092,208.80 × 22,143,865.20
  4. Step 4: Simplify right side
    82,728,139.20x = 2,747,881,144,037,453.50
  5. Step 5: Solve for x
    x = 2,747,881,144,037,453.50/82,728,139.20
  6. Step 6: Final answer
    x = 33,215,797.80

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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.