Home / 78,414,861.40-117,622,292.10-52,586,828.80

Finding the Fourth Proportional to 78,414,861.40, 117,622,292.10 and 52,586,828.80

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Solution

The fourth proportional to 78,414,861.40, 117,622,292.10 and 52,586,828.80 is: 78,880,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,414,861.40 : 117,622,292.10 = 52,586,828.80 : x
  2. Step 2: Convert to fraction form
    78,414,861.40/117,622,292.10 = 52,586,828.80/x
  3. Step 3: Cross multiply
    78,414,861.40x = 117,622,292.10 × 52,586,828.80
  4. Step 4: Simplify right side
    78,414,861.40x = 6,185,383,337,726,292
  5. Step 5: Solve for x
    x = 6,185,383,337,726,292/78,414,861.40
  6. Step 6: Final answer
    x = 78,880,243.20

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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.