Home / 75,748,538.27-113,606,314.67-20,415,081.78

Finding the Fourth Proportional to 75,748,538.27, 113,606,314.67 and 20,415,081.78

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Solution

The fourth proportional to 75,748,538.27, 113,606,314.67 and 20,415,081.78 is: 30,618,177.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,748,538.27 : 113,606,314.67 = 20,415,081.78 : x
  2. Step 2: Convert to fraction form
    75,748,538.27/113,606,314.67 = 20,415,081.78/x
  3. Step 3: Cross multiply
    75,748,538.27x = 113,606,314.67 × 20,415,081.78
  4. Step 4: Simplify right side
    75,748,538.27x = 2,319,282,204,610,388.50
  5. Step 5: Solve for x
    x = 2,319,282,204,610,388.50/75,748,538.27
  6. Step 6: Final answer
    x = 30,618,177.69

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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.