Home / 124,780,610.40-187,170,915.60-81,415,024.80

Finding the Fourth Proportional to 124,780,610.40, 187,170,915.60 and 81,415,024.80

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Solution

The fourth proportional to 124,780,610.40, 187,170,915.60 and 81,415,024.80 is: 122,122,537.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,780,610.40 : 187,170,915.60 = 81,415,024.80 : x
  2. Step 2: Convert to fraction form
    124,780,610.40/187,170,915.60 = 81,415,024.80/x
  3. Step 3: Cross multiply
    124,780,610.40x = 187,170,915.60 × 81,415,024.80
  4. Step 4: Simplify right side
    124,780,610.40x = 15,238,524,735,412,706
  5. Step 5: Solve for x
    x = 15,238,524,735,412,706/124,780,610.40
  6. Step 6: Final answer
    x = 122,122,537.20

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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.