Home / 21,580,538.90-29,781,175.67-12,288,116.52

Finding the Fourth Proportional to 21,580,538.90, 29,781,175.67 and 12,288,116.52

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Solution

The fourth proportional to 21,580,538.90, 29,781,175.67 and 12,288,116.52 is: 16,957,619.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580,538.90 : 29,781,175.67 = 12,288,116.52 : x
  2. Step 2: Convert to fraction form
    21,580,538.90/29,781,175.67 = 12,288,116.52/x
  3. Step 3: Cross multiply
    21,580,538.90x = 29,781,175.67 × 12,288,116.52
  4. Step 4: Simplify right side
    21,580,538.90x = 365,954,556,674,108.44
  5. Step 5: Solve for x
    x = 365,954,556,674,108.44/21,580,538.90
  6. Step 6: Final answer
    x = 16,957,619.01

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1.5x scale

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.