Home / 5,412,687.40-8,119,031.10-1,625,678.20

Finding the Fourth Proportional to 5,412,687.40, 8,119,031.10 and 1,625,678.20

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Solution

The fourth proportional to 5,412,687.40, 8,119,031.10 and 1,625,678.20 is: 2,438,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412,687.40 : 8,119,031.10 = 1,625,678.20 : x
  2. Step 2: Convert to fraction form
    5,412,687.40/8,119,031.10 = 1,625,678.20/x
  3. Step 3: Cross multiply
    5,412,687.40x = 8,119,031.10 × 1,625,678.20
  4. Step 4: Simplify right side
    5,412,687.40x = 13,198,931,864,392.02
  5. Step 5: Solve for x
    x = 13,198,931,864,392.02/5,412,687.40
  6. Step 6: Final answer
    x = 2,438,517.30

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1.5x scale

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.