Home / 51,221,100.88-76,831,782.54-20,928,963.88

Finding the Fourth Proportional to 51,221,100.88, 76,831,782.54 and 20,928,963.88

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Solution

The fourth proportional to 51,221,100.88, 76,831,782.54 and 20,928,963.88 is: 31,393,499.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,221,100.88 : 76,831,782.54 = 20,928,963.88 : x
  2. Step 2: Convert to fraction form
    51,221,100.88/76,831,782.54 = 20,928,963.88/x
  3. Step 3: Cross multiply
    51,221,100.88x = 76,831,782.54 × 20,928,963.88
  4. Step 4: Simplify right side
    51,221,100.88x = 1,608,009,601,615,674.75
  5. Step 5: Solve for x
    x = 1,608,009,601,615,674.75/51,221,100.88
  6. Step 6: Final answer
    x = 31,393,499.44

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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.