Home / 20,391,868.68-30,578,828.88-10,805,037.54

Finding the Fourth Proportional to 20,391,868.68, 30,578,828.88 and 10,805,037.54

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Solution

The fourth proportional to 20,391,868.68, 30,578,828.88 and 10,805,037.54 is: 16,202,801.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391,868.68 : 30,578,828.88 = 10,805,037.54 : x
  2. Step 2: Convert to fraction form
    20,391,868.68/30,578,828.88 = 10,805,037.54/x
  3. Step 3: Cross multiply
    20,391,868.68x = 30,578,828.88 × 10,805,037.54
  4. Step 4: Simplify right side
    20,391,868.68x = 330,405,393,977,636.12
  5. Step 5: Solve for x
    x = 330,405,393,977,636.12/20,391,868.68
  6. Step 6: Final answer
    x = 16,202,801.18

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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.