Home / 12,240,836.62-18,360,590.78-3,720,508.80

Finding the Fourth Proportional to 12,240,836.62, 18,360,590.78 and 3,720,508.80

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Solution

The fourth proportional to 12,240,836.62, 18,360,590.78 and 3,720,508.80 is: 5,580,561.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240,836.62 : 18,360,590.78 = 3,720,508.80 : x
  2. Step 2: Convert to fraction form
    12,240,836.62/18,360,590.78 = 3,720,508.80/x
  3. Step 3: Cross multiply
    12,240,836.62x = 18,360,590.78 × 3,720,508.80
  4. Step 4: Simplify right side
    12,240,836.62x = 68,310,739,570,188.87
  5. Step 5: Solve for x
    x = 68,310,739,570,188.87/12,240,836.62
  6. Step 6: Final answer
    x = 5,580,561.34

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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.