Home / 18,660,017.07-27,978,478.23-7,287,092.19

Finding the Fourth Proportional to 18,660,017.07, 27,978,478.23 and 7,287,092.19

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Solution

The fourth proportional to 18,660,017.07, 27,978,478.23 and 7,287,092.19 is: 10,926,128.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660,017.07 : 27,978,478.23 = 7,287,092.19 : x
  2. Step 2: Convert to fraction form
    18,660,017.07/27,978,478.23 = 7,287,092.19/x
  3. Step 3: Cross multiply
    18,660,017.07x = 27,978,478.23 × 7,287,092.19
  4. Step 4: Simplify right side
    18,660,017.07x = 203,881,750,197,918.03
  5. Step 5: Solve for x
    x = 203,881,750,197,918.03/18,660,017.07
  6. Step 6: Final answer
    x = 10,926,128.82

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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.