Home / 20,760,272.60-31,140,408.90-8,625,703.10

Finding the Fourth Proportional to 20,760,272.60, 31,140,408.90 and 8,625,703.10

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Solution

The fourth proportional to 20,760,272.60, 31,140,408.90 and 8,625,703.10 is: 12,938,554.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760,272.60 : 31,140,408.90 = 8,625,703.10 : x
  2. Step 2: Convert to fraction form
    20,760,272.60/31,140,408.90 = 8,625,703.10/x
  3. Step 3: Cross multiply
    20,760,272.60x = 31,140,408.90 × 8,625,703.10
  4. Step 4: Simplify right side
    20,760,272.60x = 268,607,921,583,997.56
  5. Step 5: Solve for x
    x = 268,607,921,583,997.56/20,760,272.60
  6. Step 6: Final answer
    x = 12,938,554.65

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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.