Home / 81,890,309.49-122,896,472.09-60,087,029.73

Finding the Fourth Proportional to 81,890,309.49, 122,896,472.09 and 60,087,029.73

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Solution

The fourth proportional to 81,890,309.49, 122,896,472.09 and 60,087,029.73 is: 90,175,309.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,890,309.49 : 122,896,472.09 = 60,087,029.73 : x
  2. Step 2: Convert to fraction form
    81,890,309.49/122,896,472.09 = 60,087,029.73/x
  3. Step 3: Cross multiply
    81,890,309.49x = 122,896,472.09 × 60,087,029.73
  4. Step 4: Simplify right side
    81,890,309.49x = 7,384,483,971,883,509
  5. Step 5: Solve for x
    x = 7,384,483,971,883,509/81,890,309.49
  6. Step 6: Final answer
    x = 90,175,309.12

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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.