Home / 12,057,420.80-18,085,839.60-7,261,475.60

Finding the Fourth Proportional to 12,057,420.80, 18,085,839.60 and 7,261,475.60

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Solution

The fourth proportional to 12,057,420.80, 18,085,839.60 and 7,261,475.60 is: 10,892,037.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,057,420.80 : 18,085,839.60 = 7,261,475.60 : x
  2. Step 2: Convert to fraction form
    12,057,420.80/18,085,839.60 = 7,261,475.60/x
  3. Step 3: Cross multiply
    12,057,420.80x = 18,085,839.60 × 7,261,475.60
  4. Step 4: Simplify right side
    12,057,420.80x = 131,329,882,960,913.77
  5. Step 5: Solve for x
    x = 131,329,882,960,913.77/12,057,420.80
  6. Step 6: Final answer
    x = 10,892,037.79

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1.5x scale

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.