Home / 19,803,781.80-29,705,672.70-13,379,250.60

Finding the Fourth Proportional to 19,803,781.80, 29,705,672.70 and 13,379,250.60

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Solution

The fourth proportional to 19,803,781.80, 29,705,672.70 and 13,379,250.60 is: 20,068,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,803,781.80 : 29,705,672.70 = 13,379,250.60 : x
  2. Step 2: Convert to fraction form
    19,803,781.80/29,705,672.70 = 13,379,250.60/x
  3. Step 3: Cross multiply
    19,803,781.80x = 29,705,672.70 × 13,379,250.60
  4. Step 4: Simplify right side
    19,803,781.80x = 397,439,639,294,878.62
  5. Step 5: Solve for x
    x = 397,439,639,294,878.62/19,803,781.80
  6. Step 6: Final answer
    x = 20,068,875.90

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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.