Home / 12,195,000.40-18,292,500.60-7,404,158.20

Finding the Fourth Proportional to 12,195,000.40, 18,292,500.60 and 7,404,158.20

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Solution

The fourth proportional to 12,195,000.40, 18,292,500.60 and 7,404,158.20 is: 11,106,237.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195,000.40 : 18,292,500.60 = 7,404,158.20 : x
  2. Step 2: Convert to fraction form
    12,195,000.40/18,292,500.60 = 7,404,158.20/x
  3. Step 3: Cross multiply
    12,195,000.40x = 18,292,500.60 × 7,404,158.20
  4. Step 4: Simplify right side
    12,195,000.40x = 135,440,568,315,994.94
  5. Step 5: Solve for x
    x = 135,440,568,315,994.94/12,195,000.40
  6. Step 6: Final answer
    x = 11,106,237.30

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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.