Home / 12,555,912.60-18,847,865.70-6,887,208.60

Finding the Fourth Proportional to 12,555,912.60, 18,847,865.70 and 6,887,208.60

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Solution

The fourth proportional to 12,555,912.60, 18,847,865.70 and 6,887,208.60 is: 10,338,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555,912.60 : 18,847,865.70 = 6,887,208.60 : x
  2. Step 2: Convert to fraction form
    12,555,912.60/18,847,865.70 = 6,887,208.60/x
  3. Step 3: Cross multiply
    12,555,912.60x = 18,847,865.70 × 6,887,208.60
  4. Step 4: Simplify right side
    12,555,912.60x = 129,809,182,740,685.02
  5. Step 5: Solve for x
    x = 129,809,182,740,685.02/12,555,912.60
  6. Step 6: Final answer
    x = 10,338,490.47

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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.