Home / 21,595,766.87-32,416,064.32-12,515,605.31

Finding the Fourth Proportional to 21,595,766.87, 32,416,064.32 and 12,515,605.31

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Solution

The fourth proportional to 21,595,766.87, 32,416,064.32 and 12,515,605.31 is: 18,786,397.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595,766.87 : 32,416,064.32 = 12,515,605.31 : x
  2. Step 2: Convert to fraction form
    21,595,766.87/32,416,064.32 = 12,515,605.31/x
  3. Step 3: Cross multiply
    21,595,766.87x = 32,416,064.32 × 12,515,605.31
  4. Step 4: Simplify right side
    21,595,766.87x = 405,706,666,732,693.56
  5. Step 5: Solve for x
    x = 405,706,666,732,693.56/21,595,766.87
  6. Step 6: Final answer
    x = 18,786,397.78

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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.