Home / 2,100,045.35-3,152,726.55-1,288,435.29

Finding the Fourth Proportional to 2,100,045.35, 3,152,726.55 and 1,288,435.29

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Solution

The fourth proportional to 2,100,045.35, 3,152,726.55 and 1,288,435.29 is: 1,934,284.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,045.35 : 3,152,726.55 = 1,288,435.29 : x
  2. Step 2: Convert to fraction form
    2,100,045.35/3,152,726.55 = 1,288,435.29/x
  3. Step 3: Cross multiply
    2,100,045.35x = 3,152,726.55 × 1,288,435.29
  4. Step 4: Simplify right side
    2,100,045.35x = 4,062,084,146,739.95
  5. Step 5: Solve for x
    x = 4,062,084,146,739.95/2,100,045.35
  6. Step 6: Final answer
    x = 1,934,284.02

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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.