Home / 21,174,218.10-31,761,327.15-12,650,166.90

Finding the Fourth Proportional to 21,174,218.10, 31,761,327.15 and 12,650,166.90

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Solution

The fourth proportional to 21,174,218.10, 31,761,327.15 and 12,650,166.90 is: 18,975,250.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174,218.10 : 31,761,327.15 = 12,650,166.90 : x
  2. Step 2: Convert to fraction form
    21,174,218.10/31,761,327.15 = 12,650,166.90/x
  3. Step 3: Cross multiply
    21,174,218.10x = 31,761,327.15 × 12,650,166.90
  4. Step 4: Simplify right side
    21,174,218.10x = 401,786,089,413,001.31
  5. Step 5: Solve for x
    x = 401,786,089,413,001.31/21,174,218.10
  6. Step 6: Final answer
    x = 18,975,250.35

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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.