Home / 28,769,181.62-39,702,055.88-15,717,285.90

Finding the Fourth Proportional to 28,769,181.62, 39,702,055.88 and 15,717,285.90

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Solution

The fourth proportional to 28,769,181.62, 39,702,055.88 and 15,717,285.90 is: 21,690,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,769,181.62 : 39,702,055.88 = 15,717,285.90 : x
  2. Step 2: Convert to fraction form
    28,769,181.62/39,702,055.88 = 15,717,285.90/x
  3. Step 3: Cross multiply
    28,769,181.62x = 39,702,055.88 × 15,717,285.90
  4. Step 4: Simplify right side
    28,769,181.62x = 624,008,563,123,029.38
  5. Step 5: Solve for x
    x = 624,008,563,123,029.38/28,769,181.62
  6. Step 6: Final answer
    x = 21,690,174.28

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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.