Home / 80,909,238.89-111,665,672.75-45,634,284.83

Finding the Fourth Proportional to 80,909,238.89, 111,665,672.75 and 45,634,284.83

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Solution

The fourth proportional to 80,909,238.89, 111,665,672.75 and 45,634,284.83 is: 62,981,473.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,909,238.89 : 111,665,672.75 = 45,634,284.83 : x
  2. Step 2: Convert to fraction form
    80,909,238.89/111,665,672.75 = 45,634,284.83/x
  3. Step 3: Cross multiply
    80,909,238.89x = 111,665,672.75 × 45,634,284.83
  4. Step 4: Simplify right side
    80,909,238.89x = 5,095,783,116,400,320
  5. Step 5: Solve for x
    x = 5,095,783,116,400,320/80,909,238.89
  6. Step 6: Final answer
    x = 62,981,473.89

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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.