Home / 20,629,554.92-30,945,360.20-7,851,050

Finding the Fourth Proportional to 20,629,554.92, 30,945,360.20 and 7,851,050

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Solution

The fourth proportional to 20,629,554.92, 30,945,360.20 and 7,851,050 is: 11,776,966.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629,554.92 : 30,945,360.20 = 7,851,050 : x
  2. Step 2: Convert to fraction form
    20,629,554.92/30,945,360.20 = 7,851,050/x
  3. Step 3: Cross multiply
    20,629,554.92x = 30,945,360.20 × 7,851,050
  4. Step 4: Simplify right side
    20,629,554.92x = 242,953,570,198,210
  5. Step 5: Solve for x
    x = 242,953,570,198,210/20,629,554.92
  6. Step 6: Final answer
    x = 11,776,966.16

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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.