Home / 20,346,052.16-28,102,391.52-15,212,181.44

Finding the Fourth Proportional to 20,346,052.16, 28,102,391.52 and 15,212,181.44

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Solution

The fourth proportional to 20,346,052.16, 28,102,391.52 and 15,212,181.44 is: 21,011,382.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346,052.16 : 28,102,391.52 = 15,212,181.44 : x
  2. Step 2: Convert to fraction form
    20,346,052.16/28,102,391.52 = 15,212,181.44/x
  3. Step 3: Cross multiply
    20,346,052.16x = 28,102,391.52 × 15,212,181.44
  4. Step 4: Simplify right side
    20,346,052.16x = 427,498,678,700,157.38
  5. Step 5: Solve for x
    x = 427,498,678,700,157.38/20,346,052.16
  6. Step 6: Final answer
    x = 21,011,382.22

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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.