Home / 2,199,959.20-3,299,938.80-1,640,087.20

Finding the Fourth Proportional to 2,199,959.20, 3,299,938.80 and 1,640,087.20

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Solution

The fourth proportional to 2,199,959.20, 3,299,938.80 and 1,640,087.20 is: 2,460,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199,959.20 : 3,299,938.80 = 1,640,087.20 : x
  2. Step 2: Convert to fraction form
    2,199,959.20/3,299,938.80 = 1,640,087.20/x
  3. Step 3: Cross multiply
    2,199,959.20x = 3,299,938.80 × 1,640,087.20
  4. Step 4: Simplify right side
    2,199,959.20x = 5,412,187,386,663.36
  5. Step 5: Solve for x
    x = 5,412,187,386,663.36/2,199,959.20
  6. Step 6: Final answer
    x = 2,460,130.80

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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.