Home / 12,452,991.40-18,679,487.10-8,197,964.20

Finding the Fourth Proportional to 12,452,991.40, 18,679,487.10 and 8,197,964.20

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Solution

The fourth proportional to 12,452,991.40, 18,679,487.10 and 8,197,964.20 is: 12,296,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452,991.40 : 18,679,487.10 = 8,197,964.20 : x
  2. Step 2: Convert to fraction form
    12,452,991.40/18,679,487.10 = 8,197,964.20/x
  3. Step 3: Cross multiply
    12,452,991.40x = 18,679,487.10 × 8,197,964.20
  4. Step 4: Simplify right side
    12,452,991.40x = 153,133,766,520,161.84
  5. Step 5: Solve for x
    x = 153,133,766,520,161.84/12,452,991.40
  6. Step 6: Final answer
    x = 12,296,946.30

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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.