Home / 12,288,727.20-18,433,090.80-8,506,480.80

Finding the Fourth Proportional to 12,288,727.20, 18,433,090.80 and 8,506,480.80

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Solution

The fourth proportional to 12,288,727.20, 18,433,090.80 and 8,506,480.80 is: 12,759,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288,727.20 : 18,433,090.80 = 8,506,480.80 : x
  2. Step 2: Convert to fraction form
    12,288,727.20/18,433,090.80 = 8,506,480.80/x
  3. Step 3: Cross multiply
    12,288,727.20x = 18,433,090.80 × 8,506,480.80
  4. Step 4: Simplify right side
    12,288,727.20x = 156,800,732,974,856.66
  5. Step 5: Solve for x
    x = 156,800,732,974,856.66/12,288,727.20
  6. Step 6: Final answer
    x = 12,759,721.20

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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.