Home / 3,918,051.72-5,406,857.40-2,199,141

Finding the Fourth Proportional to 3,918,051.72, 5,406,857.40 and 2,199,141

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Solution

The fourth proportional to 3,918,051.72, 5,406,857.40 and 2,199,141 is: 3,034,784.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,051.72 : 5,406,857.40 = 2,199,141 : x
  2. Step 2: Convert to fraction form
    3,918,051.72/5,406,857.40 = 2,199,141/x
  3. Step 3: Cross multiply
    3,918,051.72x = 5,406,857.40 × 2,199,141
  4. Step 4: Simplify right side
    3,918,051.72x = 11,890,441,789,493.40
  5. Step 5: Solve for x
    x = 11,890,441,789,493.40/3,918,051.72
  6. Step 6: Final answer
    x = 3,034,784.29

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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.