Home / 12,135,615.60-18,203,423.40-7,373,593.20

Finding the Fourth Proportional to 12,135,615.60, 18,203,423.40 and 7,373,593.20

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Solution

The fourth proportional to 12,135,615.60, 18,203,423.40 and 7,373,593.20 is: 11,060,389.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135,615.60 : 18,203,423.40 = 7,373,593.20 : x
  2. Step 2: Convert to fraction form
    12,135,615.60/18,203,423.40 = 7,373,593.20/x
  3. Step 3: Cross multiply
    12,135,615.60x = 18,203,423.40 × 7,373,593.20
  4. Step 4: Simplify right side
    12,135,615.60x = 134,224,638,998,960.88
  5. Step 5: Solve for x
    x = 134,224,638,998,960.88/12,135,615.60
  6. Step 6: Final answer
    x = 11,060,389.80

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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.