Home / 100,786,923.45-151,039,842.08-76,174,644.15

Finding the Fourth Proportional to 100,786,923.45, 151,039,842.08 and 76,174,644.15

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Solution

The fourth proportional to 100,786,923.45, 151,039,842.08 and 76,174,644.15 is: 114,155,743.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,786,923.45 : 151,039,842.08 = 76,174,644.15 : x
  2. Step 2: Convert to fraction form
    100,786,923.45/151,039,842.08 = 76,174,644.15/x
  3. Step 3: Cross multiply
    100,786,923.45x = 151,039,842.08 × 76,174,644.15
  4. Step 4: Simplify right side
    100,786,923.45x = 11,505,406,222,535,322
  5. Step 5: Solve for x
    x = 11,505,406,222,535,322/100,786,923.45
  6. Step 6: Final answer
    x = 114,155,743.91

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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.