Home / 12,282,172.75-16,943,919.96-7,122,546.46

Finding the Fourth Proportional to 12,282,172.75, 16,943,919.96 and 7,122,546.46

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Solution

The fourth proportional to 12,282,172.75, 16,943,919.96 and 7,122,546.46 is: 9,825,937.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282,172.75 : 16,943,919.96 = 7,122,546.46 : x
  2. Step 2: Convert to fraction form
    12,282,172.75/16,943,919.96 = 7,122,546.46/x
  3. Step 3: Cross multiply
    12,282,172.75x = 16,943,919.96 × 7,122,546.46
  4. Step 4: Simplify right side
    12,282,172.75x = 120,683,857,129,621.34
  5. Step 5: Solve for x
    x = 120,683,857,129,621.34/12,282,172.75
  6. Step 6: Final answer
    x = 9,825,937.12

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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.