Home / 138,618,121.53-191,285,429.06-75,882,083.07

Finding the Fourth Proportional to 138,618,121.53, 191,285,429.06 and 75,882,083.07

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Solution

The fourth proportional to 138,618,121.53, 191,285,429.06 and 75,882,083.07 is: 104,713,125.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,618,121.53 : 191,285,429.06 = 75,882,083.07 : x
  2. Step 2: Convert to fraction form
    138,618,121.53/191,285,429.06 = 75,882,083.07/x
  3. Step 3: Cross multiply
    138,618,121.53x = 191,285,429.06 × 75,882,083.07
  4. Step 4: Simplify right side
    138,618,121.53x = 14,515,136,817,632,100
  5. Step 5: Solve for x
    x = 14,515,136,817,632,100/138,618,121.53
  6. Step 6: Final answer
    x = 104,713,125.94

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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.