Home / 86,231,510.70-129,347,266.05-82,830,288.30

Finding the Fourth Proportional to 86,231,510.70, 129,347,266.05 and 82,830,288.30

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Solution

The fourth proportional to 86,231,510.70, 129,347,266.05 and 82,830,288.30 is: 124,245,432.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,231,510.70 : 129,347,266.05 = 82,830,288.30 : x
  2. Step 2: Convert to fraction form
    86,231,510.70/129,347,266.05 = 82,830,288.30/x
  3. Step 3: Cross multiply
    86,231,510.70x = 129,347,266.05 × 82,830,288.30
  4. Step 4: Simplify right side
    86,231,510.70x = 10,713,871,337,738,302
  5. Step 5: Solve for x
    x = 10,713,871,337,738,302/86,231,510.70
  6. Step 6: Final answer
    x = 124,245,432.45

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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.