Home / 3,120,162.90-4,677,911.55-1,321,574.10

Finding the Fourth Proportional to 3,120,162.90, 4,677,911.55 and 1,321,574.10

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Solution

The fourth proportional to 3,120,162.90, 4,677,911.55 and 1,321,574.10 is: 1,981,373.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,162.90 : 4,677,911.55 = 1,321,574.10 : x
  2. Step 2: Convert to fraction form
    3,120,162.90/4,677,911.55 = 1,321,574.10/x
  3. Step 3: Cross multiply
    3,120,162.90x = 4,677,911.55 × 1,321,574.10
  4. Step 4: Simplify right side
    3,120,162.90x = 6,182,206,746,570.86
  5. Step 5: Solve for x
    x = 6,182,206,746,570.86/3,120,162.90
  6. Step 6: Final answer
    x = 1,981,373.07

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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.