Home / 18,757,665.36-28,121,799.28-7,406,610.48

Finding the Fourth Proportional to 18,757,665.36, 28,121,799.28 and 7,406,610.48

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Solution

The fourth proportional to 18,757,665.36, 28,121,799.28 and 7,406,610.48 is: 11,104,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,757,665.36 : 28,121,799.28 = 7,406,610.48 : x
  2. Step 2: Convert to fraction form
    18,757,665.36/28,121,799.28 = 7,406,610.48/x
  3. Step 3: Cross multiply
    18,757,665.36x = 28,121,799.28 × 7,406,610.48
  4. Step 4: Simplify right side
    18,757,665.36x = 208,287,213,263,704.47
  5. Step 5: Solve for x
    x = 208,287,213,263,704.47/18,757,665.36
  6. Step 6: Final answer
    x = 11,104,111.80

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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.