Home / 21,515,699.60-32,230,003.80-13,403,776.40

Finding the Fourth Proportional to 21,515,699.60, 32,230,003.80 and 13,403,776.40

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Solution

The fourth proportional to 21,515,699.60, 32,230,003.80 and 13,403,776.40 is: 20,078,536.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,515,699.60 : 32,230,003.80 = 13,403,776.40 : x
  2. Step 2: Convert to fraction form
    21,515,699.60/32,230,003.80 = 13,403,776.40/x
  3. Step 3: Cross multiply
    21,515,699.60x = 32,230,003.80 × 13,403,776.40
  4. Step 4: Simplify right side
    21,515,699.60x = 432,003,764,306,350.31
  5. Step 5: Solve for x
    x = 432,003,764,306,350.31/21,515,699.60
  6. Step 6: Final answer
    x = 20,078,536.71

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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.