Home / 10,272,065.80-15,408,098.70-8,620,558.60

Finding the Fourth Proportional to 10,272,065.80, 15,408,098.70 and 8,620,558.60

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Solution

The fourth proportional to 10,272,065.80, 15,408,098.70 and 8,620,558.60 is: 12,930,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,272,065.80 : 15,408,098.70 = 8,620,558.60 : x
  2. Step 2: Convert to fraction form
    10,272,065.80/15,408,098.70 = 8,620,558.60/x
  3. Step 3: Cross multiply
    10,272,065.80x = 15,408,098.70 × 8,620,558.60
  4. Step 4: Simplify right side
    10,272,065.80x = 132,826,417,757,933.81
  5. Step 5: Solve for x
    x = 132,826,417,757,933.81/10,272,065.80
  6. Step 6: Final answer
    x = 12,930,837.90

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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.