Home / 20,776,610.40-31,164,915.60-12,167,266.20

Finding the Fourth Proportional to 20,776,610.40, 31,164,915.60 and 12,167,266.20

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Solution

The fourth proportional to 20,776,610.40, 31,164,915.60 and 12,167,266.20 is: 18,250,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,610.40 : 31,164,915.60 = 12,167,266.20 : x
  2. Step 2: Convert to fraction form
    20,776,610.40/31,164,915.60 = 12,167,266.20/x
  3. Step 3: Cross multiply
    20,776,610.40x = 31,164,915.60 × 12,167,266.20
  4. Step 4: Simplify right side
    20,776,610.40x = 379,191,824,205,732.69
  5. Step 5: Solve for x
    x = 379,191,824,205,732.69/20,776,610.40
  6. Step 6: Final answer
    x = 18,250,899.30

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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.