Home / 20,712,928.16-28,596,087.43-18,414,727.44

Finding the Fourth Proportional to 20,712,928.16, 28,596,087.43 and 18,414,727.44

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Solution

The fourth proportional to 20,712,928.16, 28,596,087.43 and 18,414,727.44 is: 25,423,211.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712,928.16 : 28,596,087.43 = 18,414,727.44 : x
  2. Step 2: Convert to fraction form
    20,712,928.16/28,596,087.43 = 18,414,727.44/x
  3. Step 3: Cross multiply
    20,712,928.16x = 28,596,087.43 × 18,414,727.44
  4. Step 4: Simplify right side
    20,712,928.16x = 526,589,155,873,860.12
  5. Step 5: Solve for x
    x = 526,589,155,873,860.12/20,712,928.16
  6. Step 6: Final answer
    x = 25,423,211.62

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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.