Home / 5,315,819.40-7,973,729.10-3,888,145.80

Finding the Fourth Proportional to 5,315,819.40, 7,973,729.10 and 3,888,145.80

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Solution

The fourth proportional to 5,315,819.40, 7,973,729.10 and 3,888,145.80 is: 5,832,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315,819.40 : 7,973,729.10 = 3,888,145.80 : x
  2. Step 2: Convert to fraction form
    5,315,819.40/7,973,729.10 = 3,888,145.80/x
  3. Step 3: Cross multiply
    5,315,819.40x = 7,973,729.10 × 3,888,145.80
  4. Step 4: Simplify right side
    5,315,819.40x = 31,003,021,310,502.78
  5. Step 5: Solve for x
    x = 31,003,021,310,502.78/5,315,819.40
  6. Step 6: Final answer
    x = 5,832,218.70

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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.