Home / 2,185,718.58-3,018,644.15-1,663,905.78

Finding the Fourth Proportional to 2,185,718.58, 3,018,644.15 and 1,663,905.78

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Solution

The fourth proportional to 2,185,718.58, 3,018,644.15 and 1,663,905.78 is: 2,297,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,718.58 : 3,018,644.15 = 1,663,905.78 : x
  2. Step 2: Convert to fraction form
    2,185,718.58/3,018,644.15 = 1,663,905.78/x
  3. Step 3: Cross multiply
    2,185,718.58x = 3,018,644.15 × 1,663,905.78
  4. Step 4: Simplify right side
    2,185,718.58x = 5,022,739,440,628.66
  5. Step 5: Solve for x
    x = 5,022,739,440,628.66/2,185,718.58
  6. Step 6: Final answer
    x = 2,297,980.85

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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.