Home / 21,438,820.56-32,140,143.74-9,299,144.42

Finding the Fourth Proportional to 21,438,820.56, 32,140,143.74 and 9,299,144.42

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Solution

The fourth proportional to 21,438,820.56, 32,140,143.74 and 9,299,144.42 is: 13,940,871.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438,820.56 : 32,140,143.74 = 9,299,144.42 : x
  2. Step 2: Convert to fraction form
    21,438,820.56/32,140,143.74 = 9,299,144.42/x
  3. Step 3: Cross multiply
    21,438,820.56x = 32,140,143.74 × 9,299,144.42
  4. Step 4: Simplify right side
    21,438,820.56x = 298,875,838,110,622.44
  5. Step 5: Solve for x
    x = 298,875,838,110,622.44/21,438,820.56
  6. Step 6: Final answer
    x = 13,940,871.29

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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.