Home / 20,318,821.34-28,039,992.44-11,617,176.16

Finding the Fourth Proportional to 20,318,821.34, 28,039,992.44 and 11,617,176.16

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Solution

The fourth proportional to 20,318,821.34, 28,039,992.44 and 11,617,176.16 is: 16,031,713.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318,821.34 : 28,039,992.44 = 11,617,176.16 : x
  2. Step 2: Convert to fraction form
    20,318,821.34/28,039,992.44 = 11,617,176.16/x
  3. Step 3: Cross multiply
    20,318,821.34x = 28,039,992.44 × 11,617,176.16
  4. Step 4: Simplify right side
    20,318,821.34x = 325,745,531,700,548.25
  5. Step 5: Solve for x
    x = 325,745,531,700,548.25/20,318,821.34
  6. Step 6: Final answer
    x = 16,031,713.96

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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.