Home / 21,203,742.69-29,262,414.78-15,967,512.63

Finding the Fourth Proportional to 21,203,742.69, 29,262,414.78 and 15,967,512.63

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Solution

The fourth proportional to 21,203,742.69, 29,262,414.78 and 15,967,512.63 is: 22,036,108.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203,742.69 : 29,262,414.78 = 15,967,512.63 : x
  2. Step 2: Convert to fraction form
    21,203,742.69/29,262,414.78 = 15,967,512.63/x
  3. Step 3: Cross multiply
    21,203,742.69x = 29,262,414.78 × 15,967,512.63
  4. Step 4: Simplify right side
    21,203,742.69x = 467,247,977,583,948.69
  5. Step 5: Solve for x
    x = 467,247,977,583,948.69/21,203,742.69
  6. Step 6: Final answer
    x = 22,036,108.64

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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.