Home / 78,414,860.40-117,622,290.60-52,586,827.80

Finding the Fourth Proportional to 78,414,860.40, 117,622,290.60 and 52,586,827.80

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Solution

The fourth proportional to 78,414,860.40, 117,622,290.60 and 52,586,827.80 is: 78,880,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,414,860.40 : 117,622,290.60 = 52,586,827.80 : x
  2. Step 2: Convert to fraction form
    78,414,860.40/117,622,290.60 = 52,586,827.80/x
  3. Step 3: Cross multiply
    78,414,860.40x = 117,622,290.60 × 52,586,827.80
  4. Step 4: Simplify right side
    78,414,860.40x = 6,185,383,141,223,758
  5. Step 5: Solve for x
    x = 6,185,383,141,223,758/78,414,860.40
  6. Step 6: Final answer
    x = 78,880,241.70

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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.