Home / 18,802,214.40-28,212,652.80-10,721,395.20

Finding the Fourth Proportional to 18,802,214.40, 28,212,652.80 and 10,721,395.20

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Solution

The fourth proportional to 18,802,214.40, 28,212,652.80 and 10,721,395.20 is: 16,087,413.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802,214.40 : 28,212,652.80 = 10,721,395.20 : x
  2. Step 2: Convert to fraction form
    18,802,214.40/28,212,652.80 = 10,721,395.20/x
  3. Step 3: Cross multiply
    18,802,214.40x = 28,212,652.80 × 10,721,395.20
  4. Step 4: Simplify right side
    18,802,214.40x = 302,479,000,309,186.56
  5. Step 5: Solve for x
    x = 302,479,000,309,186.56/18,802,214.40
  6. Step 6: Final answer
    x = 16,087,413.64

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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.