Home / 77,129,536.76-115,633,431.22-38,241,175.64

Finding the Fourth Proportional to 77,129,536.76, 115,633,431.22 and 38,241,175.64

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Solution

The fourth proportional to 77,129,536.76, 115,633,431.22 and 38,241,175.64 is: 57,331,581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,129,536.76 : 115,633,431.22 = 38,241,175.64 : x
  2. Step 2: Convert to fraction form
    77,129,536.76/115,633,431.22 = 38,241,175.64/x
  3. Step 3: Cross multiply
    77,129,536.76x = 115,633,431.22 × 38,241,175.64
  4. Step 4: Simplify right side
    77,129,536.76x = 4,421,958,353,139,879.50
  5. Step 5: Solve for x
    x = 4,421,958,353,139,879.50/77,129,536.76
  6. Step 6: Final answer
    x = 57,331,581.89

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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.