Home / 81,964,390.48-122,911,589.23-47,444,619.51

Finding the Fourth Proportional to 81,964,390.48, 122,911,589.23 and 47,444,619.51

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Solution

The fourth proportional to 81,964,390.48, 122,911,589.23 and 47,444,619.51 is: 71,146,671.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,964,390.48 : 122,911,589.23 = 47,444,619.51 : x
  2. Step 2: Convert to fraction form
    81,964,390.48/122,911,589.23 = 47,444,619.51/x
  3. Step 3: Cross multiply
    81,964,390.48x = 122,911,589.23 × 47,444,619.51
  4. Step 4: Simplify right side
    81,964,390.48x = 5,831,493,584,906,988
  5. Step 5: Solve for x
    x = 5,831,493,584,906,988/81,964,390.48
  6. Step 6: Final answer
    x = 71,146,671.76

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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.