Home / 12,288,467.20-18,432,700.80-3,770,118.40

Finding the Fourth Proportional to 12,288,467.20, 18,432,700.80 and 3,770,118.40

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Solution

The fourth proportional to 12,288,467.20, 18,432,700.80 and 3,770,118.40 is: 5,655,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288,467.20 : 18,432,700.80 = 3,770,118.40 : x
  2. Step 2: Convert to fraction form
    12,288,467.20/18,432,700.80 = 3,770,118.40/x
  3. Step 3: Cross multiply
    12,288,467.20x = 18,432,700.80 × 3,770,118.40
  4. Step 4: Simplify right side
    12,288,467.20x = 69,493,464,447,774.72
  5. Step 5: Solve for x
    x = 69,493,464,447,774.72/12,288,467.20
  6. Step 6: Final answer
    x = 5,655,177.60

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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.