Home / 20,885,684.20-31,328,483.02-11,783,649.80

Finding the Fourth Proportional to 20,885,684.20, 31,328,483.02 and 11,783,649.80

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Solution

The fourth proportional to 20,885,684.20, 31,328,483.02 and 11,783,649.80 is: 17,675,450.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,684.20 : 31,328,483.02 = 11,783,649.80 : x
  2. Step 2: Convert to fraction form
    20,885,684.20/31,328,483.02 = 11,783,649.80/x
  3. Step 3: Cross multiply
    20,885,684.20x = 31,328,483.02 × 11,783,649.80
  4. Step 4: Simplify right side
    20,885,684.20x = 369,163,872,672,926.44
  5. Step 5: Solve for x
    x = 369,163,872,672,926.44/20,885,684.20
  6. Step 6: Final answer
    x = 17,675,450.28

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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.