Home / 3,121,209.80-4,681,814.70-1,625,107.40

Finding the Fourth Proportional to 3,121,209.80, 4,681,814.70 and 1,625,107.40

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Solution

The fourth proportional to 3,121,209.80, 4,681,814.70 and 1,625,107.40 is: 2,437,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,209.80 : 4,681,814.70 = 1,625,107.40 : x
  2. Step 2: Convert to fraction form
    3,121,209.80/4,681,814.70 = 1,625,107.40/x
  3. Step 3: Cross multiply
    3,121,209.80x = 4,681,814.70 × 1,625,107.40
  4. Step 4: Simplify right side
    3,121,209.80x = 7,608,451,714,398.78
  5. Step 5: Solve for x
    x = 7,608,451,714,398.78/3,121,209.80
  6. Step 6: Final answer
    x = 2,437,661.10

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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.