Home / 5,638,000.80-8,439,721.20-3,105,904.80

Finding the Fourth Proportional to 5,638,000.80, 8,439,721.20 and 3,105,904.80

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Solution

The fourth proportional to 5,638,000.80, 8,439,721.20 and 3,105,904.80 is: 4,649,337.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638,000.80 : 8,439,721.20 = 3,105,904.80 : x
  2. Step 2: Convert to fraction form
    5,638,000.80/8,439,721.20 = 3,105,904.80/x
  3. Step 3: Cross multiply
    5,638,000.80x = 8,439,721.20 × 3,105,904.80
  4. Step 4: Simplify right side
    5,638,000.80x = 26,212,970,585,741.76
  5. Step 5: Solve for x
    x = 26,212,970,585,741.76/5,638,000.80
  6. Step 6: Final answer
    x = 4,649,337.86

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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.