Home / 20,178,830.72-27,847,374.48-11,012,063.92

Finding the Fourth Proportional to 20,178,830.72, 27,847,374.48 and 11,012,063.92

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Solution

The fourth proportional to 20,178,830.72, 27,847,374.48 and 11,012,063.92 is: 15,196,969.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178,830.72 : 27,847,374.48 = 11,012,063.92 : x
  2. Step 2: Convert to fraction form
    20,178,830.72/27,847,374.48 = 11,012,063.92/x
  3. Step 3: Cross multiply
    20,178,830.72x = 27,847,374.48 × 11,012,063.92
  4. Step 4: Simplify right side
    20,178,830.72x = 306,657,067,777,936.75
  5. Step 5: Solve for x
    x = 306,657,067,777,936.75/20,178,830.72
  6. Step 6: Final answer
    x = 15,196,969.14

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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.