Home / 20,514,192.95-28,310,261.34-11,221,550.57

Finding the Fourth Proportional to 20,514,192.95, 28,310,261.34 and 11,221,550.57

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Solution

The fourth proportional to 20,514,192.95, 28,310,261.34 and 11,221,550.57 is: 15,486,109.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514,192.95 : 28,310,261.34 = 11,221,550.57 : x
  2. Step 2: Convert to fraction form
    20,514,192.95/28,310,261.34 = 11,221,550.57/x
  3. Step 3: Cross multiply
    20,514,192.95x = 28,310,261.34 × 11,221,550.57
  4. Step 4: Simplify right side
    20,514,192.95x = 317,685,029,276,726
  5. Step 5: Solve for x
    x = 317,685,029,276,726/20,514,192.95
  6. Step 6: Final answer
    x = 15,486,109.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.