Home / 12,048,621.40-18,086,928.90-7,261,715.80

Finding the Fourth Proportional to 12,048,621.40, 18,086,928.90 and 7,261,715.80

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Solution

The fourth proportional to 12,048,621.40, 18,086,928.90 and 7,261,715.80 is: 10,901,009.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,048,621.40 : 18,086,928.90 = 7,261,715.80 : x
  2. Step 2: Convert to fraction form
    12,048,621.40/18,086,928.90 = 7,261,715.80/x
  3. Step 3: Cross multiply
    12,048,621.40x = 18,086,928.90 × 7,261,715.80
  4. Step 4: Simplify right side
    12,048,621.40x = 131,342,137,366,606.61
  5. Step 5: Solve for x
    x = 131,342,137,366,606.61/12,048,621.40
  6. Step 6: Final answer
    x = 10,901,009.58

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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.