Home / 77,861,958.55-107,412,918.21-55,539,878.31

Finding the Fourth Proportional to 77,861,958.55, 107,412,918.21 and 55,539,878.31

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Solution

The fourth proportional to 77,861,958.55, 107,412,918.21 and 55,539,878.31 is: 76,618,935.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,861,958.55 : 107,412,918.21 = 55,539,878.31 : x
  2. Step 2: Convert to fraction form
    77,861,958.55/107,412,918.21 = 55,539,878.31/x
  3. Step 3: Cross multiply
    77,861,958.55x = 107,412,918.21 × 55,539,878.31
  4. Step 4: Simplify right side
    77,861,958.55x = 5,965,700,406,305,383
  5. Step 5: Solve for x
    x = 5,965,700,406,305,383/77,861,958.55
  6. Step 6: Final answer
    x = 76,618,935.84

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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.