Home / 20,781,690.82-28,678,774.89-11,614,333.30

Finding the Fourth Proportional to 20,781,690.82, 28,678,774.89 and 11,614,333.30

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Solution

The fourth proportional to 20,781,690.82, 28,678,774.89 and 11,614,333.30 is: 16,027,803.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,781,690.82 : 28,678,774.89 = 11,614,333.30 : x
  2. Step 2: Convert to fraction form
    20,781,690.82/28,678,774.89 = 11,614,333.30/x
  3. Step 3: Cross multiply
    20,781,690.82x = 28,678,774.89 × 11,614,333.30
  4. Step 4: Simplify right side
    20,781,690.82x = 333,084,850,208,130.88
  5. Step 5: Solve for x
    x = 333,084,850,208,130.88/20,781,690.82
  6. Step 6: Final answer
    x = 16,027,803.18

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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.