Home / 21,609,402.39-29,819,358.67-11,819,340.63

Finding the Fourth Proportional to 21,609,402.39, 29,819,358.67 and 11,819,340.63

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Solution

The fourth proportional to 21,609,402.39, 29,819,358.67 and 11,819,340.63 is: 16,309,805.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,609,402.39 : 29,819,358.67 = 11,819,340.63 : x
  2. Step 2: Convert to fraction form
    21,609,402.39/29,819,358.67 = 11,819,340.63/x
  3. Step 3: Cross multiply
    21,609,402.39x = 29,819,358.67 × 11,819,340.63
  4. Step 4: Simplify right side
    21,609,402.39x = 352,445,157,563,422.19
  5. Step 5: Solve for x
    x = 352,445,157,563,422.19/21,609,402.39
  6. Step 6: Final answer
    x = 16,309,805.85

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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.