Home / 12,300,605.20-18,461,405.40-5,487,662.80

Finding the Fourth Proportional to 12,300,605.20, 18,461,405.40 and 5,487,662.80

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Solution

The fourth proportional to 12,300,605.20, 18,461,405.40 and 5,487,662.80 is: 8,236,177.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,300,605.20 : 18,461,405.40 = 5,487,662.80 : x
  2. Step 2: Convert to fraction form
    12,300,605.20/18,461,405.40 = 5,487,662.80/x
  3. Step 3: Cross multiply
    12,300,605.20x = 18,461,405.40 × 5,487,662.80
  4. Step 4: Simplify right side
    12,300,605.20x = 101,309,967,649,299.11
  5. Step 5: Solve for x
    x = 101,309,967,649,299.11/12,300,605.20
  6. Step 6: Final answer
    x = 8,236,177.49

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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.