Home / 20,919,026.46-28,868,996.55-11,626,781.82

Finding the Fourth Proportional to 20,919,026.46, 28,868,996.55 and 11,626,781.82

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Solution

The fourth proportional to 20,919,026.46, 28,868,996.55 and 11,626,781.82 is: 16,045,370.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,919,026.46 : 28,868,996.55 = 11,626,781.82 : x
  2. Step 2: Convert to fraction form
    20,919,026.46/28,868,996.55 = 11,626,781.82/x
  3. Step 3: Cross multiply
    20,919,026.46x = 28,868,996.55 × 11,626,781.82
  4. Step 4: Simplify right side
    20,919,026.46x = 335,653,524,249,182.75
  5. Step 5: Solve for x
    x = 335,653,524,249,182.75/20,919,026.46
  6. Step 6: Final answer
    x = 16,045,370.22

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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.