Home / 7,180,867.62-10,771,271.91-2,920,999.86

Finding the Fourth Proportional to 7,180,867.62, 10,771,271.91 and 2,920,999.86

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Solution

The fourth proportional to 7,180,867.62, 10,771,271.91 and 2,920,999.86 is: 4,381,487.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180,867.62 : 10,771,271.91 = 2,920,999.86 : x
  2. Step 2: Convert to fraction form
    7,180,867.62/10,771,271.91 = 2,920,999.86/x
  3. Step 3: Cross multiply
    7,180,867.62x = 10,771,271.91 × 2,920,999.86
  4. Step 4: Simplify right side
    7,180,867.62x = 31,462,883,741,131.93
  5. Step 5: Solve for x
    x = 31,462,883,741,131.93/7,180,867.62
  6. Step 6: Final answer
    x = 4,381,487.78

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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.