Home / 12,305,121.20-18,457,681.80-7,266,273.20

Finding the Fourth Proportional to 12,305,121.20, 18,457,681.80 and 7,266,273.20

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Solution

The fourth proportional to 12,305,121.20, 18,457,681.80 and 7,266,273.20 is: 10,899,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305,121.20 : 18,457,681.80 = 7,266,273.20 : x
  2. Step 2: Convert to fraction form
    12,305,121.20/18,457,681.80 = 7,266,273.20/x
  3. Step 3: Cross multiply
    12,305,121.20x = 18,457,681.80 × 7,266,273.20
  4. Step 4: Simplify right side
    12,305,121.20x = 134,118,558,597,467.77
  5. Step 5: Solve for x
    x = 134,118,558,597,467.77/12,305,121.20
  6. Step 6: Final answer
    x = 10,899,409.80

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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.