Home / 2,185,390.20-3,278,085.30-1,972,813.80

Finding the Fourth Proportional to 2,185,390.20, 3,278,085.30 and 1,972,813.80

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Solution

The fourth proportional to 2,185,390.20, 3,278,085.30 and 1,972,813.80 is: 2,959,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,390.20 : 3,278,085.30 = 1,972,813.80 : x
  2. Step 2: Convert to fraction form
    2,185,390.20/3,278,085.30 = 1,972,813.80/x
  3. Step 3: Cross multiply
    2,185,390.20x = 3,278,085.30 × 1,972,813.80
  4. Step 4: Simplify right side
    2,185,390.20x = 6,467,051,917,417.14
  5. Step 5: Solve for x
    x = 6,467,051,917,417.14/2,185,390.20
  6. Step 6: Final answer
    x = 2,959,220.70

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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.