Home / 12,102,002.20-18,153,003.30-11,178,213.40

Finding the Fourth Proportional to 12,102,002.20, 18,153,003.30 and 11,178,213.40

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Solution

The fourth proportional to 12,102,002.20, 18,153,003.30 and 11,178,213.40 is: 16,767,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102,002.20 : 18,153,003.30 = 11,178,213.40 : x
  2. Step 2: Convert to fraction form
    12,102,002.20/18,153,003.30 = 11,178,213.40/x
  3. Step 3: Cross multiply
    12,102,002.20x = 18,153,003.30 × 11,178,213.40
  4. Step 4: Simplify right side
    12,102,002.20x = 202,918,144,738,304.25
  5. Step 5: Solve for x
    x = 202,918,144,738,304.25/12,102,002.20
  6. Step 6: Final answer
    x = 16,767,320.10

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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.