Home / 2,138,615.08-2,951,175.92-1,220,807.72

Finding the Fourth Proportional to 2,138,615.08, 2,951,175.92 and 1,220,807.72

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Solution

The fourth proportional to 2,138,615.08, 2,951,175.92 and 1,220,807.72 is: 1,684,650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,615.08 : 2,951,175.92 = 1,220,807.72 : x
  2. Step 2: Convert to fraction form
    2,138,615.08/2,951,175.92 = 1,220,807.72/x
  3. Step 3: Cross multiply
    2,138,615.08x = 2,951,175.92 × 1,220,807.72
  4. Step 4: Simplify right side
    2,138,615.08x = 3,602,818,347,488.00
  5. Step 5: Solve for x
    x = 3,602,818,347,488.00/2,138,615.08
  6. Step 6: Final answer
    x = 1,684,650.21

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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.