Home / 18,121,550.40-27,191,802.60-7,339,990.32

Finding the Fourth Proportional to 18,121,550.40, 27,191,802.60 and 7,339,990.32

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Solution

The fourth proportional to 18,121,550.40, 27,191,802.60 and 7,339,990.32 is: 11,013,824.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121,550.40 : 27,191,802.60 = 7,339,990.32 : x
  2. Step 2: Convert to fraction form
    18,121,550.40/27,191,802.60 = 7,339,990.32/x
  3. Step 3: Cross multiply
    18,121,550.40x = 27,191,802.60 × 7,339,990.32
  4. Step 4: Simplify right side
    18,121,550.40x = 199,587,567,867,350.84
  5. Step 5: Solve for x
    x = 199,587,567,867,350.84/18,121,550.40
  6. Step 6: Final answer
    x = 11,013,824.06

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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.