Home / 20,629,544.90-30,945,345.20-7,851,039.98

Finding the Fourth Proportional to 20,629,544.90, 30,945,345.20 and 7,851,039.98

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Solution

The fourth proportional to 20,629,544.90, 30,945,345.20 and 7,851,039.98 is: 11,776,951.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629,544.90 : 30,945,345.20 = 7,851,039.98 : x
  2. Step 2: Convert to fraction form
    20,629,544.90/30,945,345.20 = 7,851,039.98/x
  3. Step 3: Cross multiply
    20,629,544.90x = 30,945,345.20 × 7,851,039.98
  4. Step 4: Simplify right side
    20,629,544.90x = 242,953,142,166,119.16
  5. Step 5: Solve for x
    x = 242,953,142,166,119.16/20,629,544.90
  6. Step 6: Final answer
    x = 11,776,951.14

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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.