Home / 18,835,061.20-28,196,604.60-12,452,520.40

Finding the Fourth Proportional to 18,835,061.20, 28,196,604.60 and 12,452,520.40

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Solution

The fourth proportional to 18,835,061.20, 28,196,604.60 and 12,452,520.40 is: 18,641,765.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835,061.20 : 28,196,604.60 = 12,452,520.40 : x
  2. Step 2: Convert to fraction form
    18,835,061.20/28,196,604.60 = 12,452,520.40/x
  3. Step 3: Cross multiply
    18,835,061.20x = 28,196,604.60 × 12,452,520.40
  4. Step 4: Simplify right side
    18,835,061.20x = 351,118,793,992,233.88
  5. Step 5: Solve for x
    x = 351,118,793,992,233.88/18,835,061.20
  6. Step 6: Final answer
    x = 18,641,765.50

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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.