Home / 3,120,136.20-4,670,873.10-1,857,313.80

Finding the Fourth Proportional to 3,120,136.20, 4,670,873.10 and 1,857,313.80

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Solution

The fourth proportional to 3,120,136.20, 4,670,873.10 and 1,857,313.80 is: 2,780,416.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,136.20 : 4,670,873.10 = 1,857,313.80 : x
  2. Step 2: Convert to fraction form
    3,120,136.20/4,670,873.10 = 1,857,313.80/x
  3. Step 3: Cross multiply
    3,120,136.20x = 4,670,873.10 × 1,857,313.80
  4. Step 4: Simplify right side
    3,120,136.20x = 8,675,277,066,678.78
  5. Step 5: Solve for x
    x = 8,675,277,066,678.78/3,120,136.20
  6. Step 6: Final answer
    x = 2,780,416.15

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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.