Home / 2,687,986.60-4,031,979.90-1,932,159.40

Finding the Fourth Proportional to 2,687,986.60, 4,031,979.90 and 1,932,159.40

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Solution

The fourth proportional to 2,687,986.60, 4,031,979.90 and 1,932,159.40 is: 2,898,239.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687,986.60 : 4,031,979.90 = 1,932,159.40 : x
  2. Step 2: Convert to fraction form
    2,687,986.60/4,031,979.90 = 1,932,159.40/x
  3. Step 3: Cross multiply
    2,687,986.60x = 4,031,979.90 × 1,932,159.40
  4. Step 4: Simplify right side
    2,687,986.60x = 7,790,427,864,396.06
  5. Step 5: Solve for x
    x = 7,790,427,864,396.06/2,687,986.60
  6. Step 6: Final answer
    x = 2,898,239.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.