Home / 13,320,308.15-18,382,025.01-7,208,736.65

Finding the Fourth Proportional to 13,320,308.15, 18,382,025.01 and 7,208,736.65

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Solution

The fourth proportional to 13,320,308.15, 18,382,025.01 and 7,208,736.65 is: 9,948,056.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,308.15 : 18,382,025.01 = 7,208,736.65 : x
  2. Step 2: Convert to fraction form
    13,320,308.15/18,382,025.01 = 7,208,736.65/x
  3. Step 3: Cross multiply
    13,320,308.15x = 18,382,025.01 × 7,208,736.65
  4. Step 4: Simplify right side
    13,320,308.15x = 132,511,177,298,893.50
  5. Step 5: Solve for x
    x = 132,511,177,298,893.50/13,320,308.15
  6. Step 6: Final answer
    x = 9,948,056.45

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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.