Home / 12,298,291.20-18,447,436.80-4,320,115.20

Finding the Fourth Proportional to 12,298,291.20, 18,447,436.80 and 4,320,115.20

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Solution

The fourth proportional to 12,298,291.20, 18,447,436.80 and 4,320,115.20 is: 6,480,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,298,291.20 : 18,447,436.80 = 4,320,115.20 : x
  2. Step 2: Convert to fraction form
    12,298,291.20/18,447,436.80 = 4,320,115.20/x
  3. Step 3: Cross multiply
    12,298,291.20x = 18,447,436.80 × 4,320,115.20
  4. Step 4: Simplify right side
    12,298,291.20x = 79,695,052,120,719.36
  5. Step 5: Solve for x
    x = 79,695,052,120,719.36/12,298,291.20
  6. Step 6: Final answer
    x = 6,480,172.80

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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.