Home / 8,140,005.70-12,210,008.55-3,351,131.80

Finding the Fourth Proportional to 8,140,005.70, 12,210,008.55 and 3,351,131.80

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Solution

The fourth proportional to 8,140,005.70, 12,210,008.55 and 3,351,131.80 is: 5,026,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140,005.70 : 12,210,008.55 = 3,351,131.80 : x
  2. Step 2: Convert to fraction form
    8,140,005.70/12,210,008.55 = 3,351,131.80/x
  3. Step 3: Cross multiply
    8,140,005.70x = 12,210,008.55 × 3,351,131.80
  4. Step 4: Simplify right side
    8,140,005.70x = 40,917,347,930,176.89
  5. Step 5: Solve for x
    x = 40,917,347,930,176.89/8,140,005.70
  6. Step 6: Final answer
    x = 5,026,697.70

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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.