Home / 2,136,068.80-3,200,215.20-1,689,726.40

Finding the Fourth Proportional to 2,136,068.80, 3,200,215.20 and 1,689,726.40

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Solution

The fourth proportional to 2,136,068.80, 3,200,215.20 and 1,689,726.40 is: 2,531,514.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136,068.80 : 3,200,215.20 = 1,689,726.40 : x
  2. Step 2: Convert to fraction form
    2,136,068.80/3,200,215.20 = 1,689,726.40/x
  3. Step 3: Cross multiply
    2,136,068.80x = 3,200,215.20 × 1,689,726.40
  4. Step 4: Simplify right side
    2,136,068.80x = 5,407,488,109,121.28
  5. Step 5: Solve for x
    x = 5,407,488,109,121.28/2,136,068.80
  6. Step 6: Final answer
    x = 2,531,514.02

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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.