Home / 78,414,878.40-117,622,317.60-52,586,845.80

Finding the Fourth Proportional to 78,414,878.40, 117,622,317.60 and 52,586,845.80

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Solution

The fourth proportional to 78,414,878.40, 117,622,317.60 and 52,586,845.80 is: 78,880,268.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,414,878.40 : 117,622,317.60 = 52,586,845.80 : x
  2. Step 2: Convert to fraction form
    78,414,878.40/117,622,317.60 = 52,586,845.80/x
  3. Step 3: Cross multiply
    78,414,878.40x = 117,622,317.60 × 52,586,845.80
  4. Step 4: Simplify right side
    78,414,878.40x = 6,185,386,678,269,825
  5. Step 5: Solve for x
    x = 6,185,386,678,269,825/78,414,878.40
  6. Step 6: Final answer
    x = 78,880,268.70

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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.