Home / 21,750,767.82-30,015,424.80-11,961,201.78

Finding the Fourth Proportional to 21,750,767.82, 30,015,424.80 and 11,961,201.78

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Solution

The fourth proportional to 21,750,767.82, 30,015,424.80 and 11,961,201.78 is: 16,506,109.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,750,767.82 : 30,015,424.80 = 11,961,201.78 : x
  2. Step 2: Convert to fraction form
    21,750,767.82/30,015,424.80 = 11,961,201.78/x
  3. Step 3: Cross multiply
    21,750,767.82x = 30,015,424.80 × 11,961,201.78
  4. Step 4: Simplify right side
    21,750,767.82x = 359,020,552,545,216.12
  5. Step 5: Solve for x
    x = 359,020,552,545,216.12/21,750,767.82
  6. Step 6: Final answer
    x = 16,506,109.37

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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.