Home / 12,480,136.75-18,720,205.13-3,024,520.75

Finding the Fourth Proportional to 12,480,136.75, 18,720,205.13 and 3,024,520.75

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Solution

The fourth proportional to 12,480,136.75, 18,720,205.13 and 3,024,520.75 is: 4,536,781.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480,136.75 : 18,720,205.13 = 3,024,520.75 : x
  2. Step 2: Convert to fraction form
    12,480,136.75/18,720,205.13 = 3,024,520.75/x
  3. Step 3: Cross multiply
    12,480,136.75x = 18,720,205.13 × 3,024,520.75
  4. Step 4: Simplify right side
    12,480,136.75x = 56,619,648,859,941.45
  5. Step 5: Solve for x
    x = 56,619,648,859,941.45/12,480,136.75
  6. Step 6: Final answer
    x = 4,536,781.13

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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.