Home / 4,978,891.31-6,872,393.18-2,914,389.77

Finding the Fourth Proportional to 4,978,891.31, 6,872,393.18 and 2,914,389.77

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Solution

The fourth proportional to 4,978,891.31, 6,872,393.18 and 2,914,389.77 is: 4,022,749.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,978,891.31 : 6,872,393.18 = 2,914,389.77 : x
  2. Step 2: Convert to fraction form
    4,978,891.31/6,872,393.18 = 2,914,389.77/x
  3. Step 3: Cross multiply
    4,978,891.31x = 6,872,393.18 × 2,914,389.77
  4. Step 4: Simplify right side
    4,978,891.31x = 20,028,832,364,637.82
  5. Step 5: Solve for x
    x = 20,028,832,364,637.82/4,978,891.31
  6. Step 6: Final answer
    x = 4,022,749.47

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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.