Home / 12,005,378.40-17,995,820.40-5,930,767.20

Finding the Fourth Proportional to 12,005,378.40, 17,995,820.40 and 5,930,767.20

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Solution

The fourth proportional to 12,005,378.40, 17,995,820.40 and 5,930,767.20 is: 8,890,100.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005,378.40 : 17,995,820.40 = 5,930,767.20 : x
  2. Step 2: Convert to fraction form
    12,005,378.40/17,995,820.40 = 5,930,767.20/x
  3. Step 3: Cross multiply
    12,005,378.40x = 17,995,820.40 × 5,930,767.20
  4. Step 4: Simplify right side
    12,005,378.40x = 106,729,021,365,410.88
  5. Step 5: Solve for x
    x = 106,729,021,365,410.88/12,005,378.40
  6. Step 6: Final answer
    x = 8,890,100.57

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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.