Home / 69,120,360.40-103,680,540.60-51,204,456.40

Finding the Fourth Proportional to 69,120,360.40, 103,680,540.60 and 51,204,456.40

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Solution

The fourth proportional to 69,120,360.40, 103,680,540.60 and 51,204,456.40 is: 76,806,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,120,360.40 : 103,680,540.60 = 51,204,456.40 : x
  2. Step 2: Convert to fraction form
    69,120,360.40/103,680,540.60 = 51,204,456.40/x
  3. Step 3: Cross multiply
    69,120,360.40x = 103,680,540.60 × 51,204,456.40
  4. Step 4: Simplify right side
    69,120,360.40x = 5,308,905,720,681,129
  5. Step 5: Solve for x
    x = 5,308,905,720,681,129/69,120,360.40
  6. Step 6: Final answer
    x = 76,806,684.60

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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.