Home / 20,947,883.48-28,907,625.87-12,127,706.66

Finding the Fourth Proportional to 20,947,883.48, 28,907,625.87 and 12,127,706.66

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Solution

The fourth proportional to 20,947,883.48, 28,907,625.87 and 12,127,706.66 is: 16,735,972.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,947,883.48 : 28,907,625.87 = 12,127,706.66 : x
  2. Step 2: Convert to fraction form
    20,947,883.48/28,907,625.87 = 12,127,706.66/x
  3. Step 3: Cross multiply
    20,947,883.48x = 28,907,625.87 × 12,127,706.66
  4. Step 4: Simplify right side
    20,947,883.48x = 350,583,206,788,387.31
  5. Step 5: Solve for x
    x = 350,583,206,788,387.31/20,947,883.48
  6. Step 6: Final answer
    x = 16,735,972.74

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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.