Home / 28,021,716.87-42,031,080.62-7,551,107.78

Finding the Fourth Proportional to 28,021,716.87, 42,031,080.62 and 7,551,107.78

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Solution

The fourth proportional to 28,021,716.87, 42,031,080.62 and 7,551,107.78 is: 11,326,258.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021,716.87 : 42,031,080.62 = 7,551,107.78 : x
  2. Step 2: Convert to fraction form
    28,021,716.87/42,031,080.62 = 7,551,107.78/x
  3. Step 3: Cross multiply
    28,021,716.87x = 42,031,080.62 × 7,551,107.78
  4. Step 4: Simplify right side
    28,021,716.87x = 317,381,219,642,456.06
  5. Step 5: Solve for x
    x = 317,381,219,642,456.06/28,021,716.87
  6. Step 6: Final answer
    x = 11,326,258.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.