Home / 3,840,136.80-5,760,205.20-3,214,946.40

Finding the Fourth Proportional to 3,840,136.80, 5,760,205.20 and 3,214,946.40

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Solution

The fourth proportional to 3,840,136.80, 5,760,205.20 and 3,214,946.40 is: 4,822,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840,136.80 : 5,760,205.20 = 3,214,946.40 : x
  2. Step 2: Convert to fraction form
    3,840,136.80/5,760,205.20 = 3,214,946.40/x
  3. Step 3: Cross multiply
    3,840,136.80x = 5,760,205.20 × 3,214,946.40
  4. Step 4: Simplify right side
    3,840,136.80x = 18,518,750,971,001.28
  5. Step 5: Solve for x
    x = 18,518,750,971,001.28/3,840,136.80
  6. Step 6: Final answer
    x = 4,822,419.60

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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.