Home / 21,156,735.60-31,735,103.40-20,006,578.80

Finding the Fourth Proportional to 21,156,735.60, 31,735,103.40 and 20,006,578.80

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Solution

The fourth proportional to 21,156,735.60, 31,735,103.40 and 20,006,578.80 is: 30,009,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,156,735.60 : 31,735,103.40 = 20,006,578.80 : x
  2. Step 2: Convert to fraction form
    21,156,735.60/31,735,103.40 = 20,006,578.80/x
  3. Step 3: Cross multiply
    21,156,735.60x = 31,735,103.40 × 20,006,578.80
  4. Step 4: Simplify right side
    21,156,735.60x = 634,910,846,898,247.88
  5. Step 5: Solve for x
    x = 634,910,846,898,247.88/21,156,735.60
  6. Step 6: Final answer
    x = 30,009,868.20

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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.