Home / 81,192,664.70-121,788,997.05-63,973,976.30

Finding the Fourth Proportional to 81,192,664.70, 121,788,997.05 and 63,973,976.30

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Solution

The fourth proportional to 81,192,664.70, 121,788,997.05 and 63,973,976.30 is: 95,960,964.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,192,664.70 : 121,788,997.05 = 63,973,976.30 : x
  2. Step 2: Convert to fraction form
    81,192,664.70/121,788,997.05 = 63,973,976.30/x
  3. Step 3: Cross multiply
    81,192,664.70x = 121,788,997.05 × 63,973,976.30
  4. Step 4: Simplify right side
    81,192,664.70x = 7,791,326,410,877,469
  5. Step 5: Solve for x
    x = 7,791,326,410,877,469/81,192,664.70
  6. Step 6: Final answer
    x = 95,960,964.45

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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.