Home / 69,681,262.32-104,515,134.48-21,159,535.68

Finding the Fourth Proportional to 69,681,262.32, 104,515,134.48 and 21,159,535.68

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Solution

The fourth proportional to 69,681,262.32, 104,515,134.48 and 21,159,535.68 is: 31,737,251.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,681,262.32 : 104,515,134.48 = 21,159,535.68 : x
  2. Step 2: Convert to fraction form
    69,681,262.32/104,515,134.48 = 21,159,535.68/x
  3. Step 3: Cross multiply
    69,681,262.32x = 104,515,134.48 × 21,159,535.68
  4. Step 4: Simplify right side
    69,681,262.32x = 2,211,491,717,129,558.25
  5. Step 5: Solve for x
    x = 2,211,491,717,129,558.25/69,681,262.32
  6. Step 6: Final answer
    x = 31,737,251.07

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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.