Home / 20,764,181.72-28,653,703.44-11,942,962.16

Finding the Fourth Proportional to 20,764,181.72, 28,653,703.44 and 11,942,962.16

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Solution

The fourth proportional to 20,764,181.72, 28,653,703.44 and 11,942,962.16 is: 16,480,788.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764,181.72 : 28,653,703.44 = 11,942,962.16 : x
  2. Step 2: Convert to fraction form
    20,764,181.72/28,653,703.44 = 11,942,962.16/x
  3. Step 3: Cross multiply
    20,764,181.72x = 28,653,703.44 × 11,942,962.16
  4. Step 4: Simplify right side
    20,764,181.72x = 342,210,095,927,781.88
  5. Step 5: Solve for x
    x = 342,210,095,927,781.88/20,764,181.72
  6. Step 6: Final answer
    x = 16,480,788.92

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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.