Home / 52,539,805.67-78,741,340.82-21,379,140.92

Finding the Fourth Proportional to 52,539,805.67, 78,741,340.82 and 21,379,140.92

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Solution

The fourth proportional to 52,539,805.67, 78,741,340.82 and 21,379,140.92 is: 32,040,891.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,539,805.67 : 78,741,340.82 = 21,379,140.92 : x
  2. Step 2: Convert to fraction form
    52,539,805.67/78,741,340.82 = 21,379,140.92/x
  3. Step 3: Cross multiply
    52,539,805.67x = 78,741,340.82 × 21,379,140.92
  4. Step 4: Simplify right side
    52,539,805.67x = 1,683,422,221,119,925.75
  5. Step 5: Solve for x
    x = 1,683,422,221,119,925.75/52,539,805.67
  6. Step 6: Final answer
    x = 32,040,891.66

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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.