Home / 2,128,511.80-3,192,767.70-2,086,521.40

Finding the Fourth Proportional to 2,128,511.80, 3,192,767.70 and 2,086,521.40

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Solution

The fourth proportional to 2,128,511.80, 3,192,767.70 and 2,086,521.40 is: 3,129,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,511.80 : 3,192,767.70 = 2,086,521.40 : x
  2. Step 2: Convert to fraction form
    2,128,511.80/3,192,767.70 = 2,086,521.40/x
  3. Step 3: Cross multiply
    2,128,511.80x = 3,192,767.70 × 2,086,521.40
  4. Step 4: Simplify right side
    2,128,511.80x = 6,661,778,131,278.78
  5. Step 5: Solve for x
    x = 6,661,778,131,278.78/2,128,511.80
  6. Step 6: Final answer
    x = 3,129,782.10

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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.