Home / 78,414,853.40-117,622,280.10-52,586,820.80

Finding the Fourth Proportional to 78,414,853.40, 117,622,280.10 and 52,586,820.80

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Solution

The fourth proportional to 78,414,853.40, 117,622,280.10 and 52,586,820.80 is: 78,880,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,414,853.40 : 117,622,280.10 = 52,586,820.80 : x
  2. Step 2: Convert to fraction form
    78,414,853.40/117,622,280.10 = 52,586,820.80/x
  3. Step 3: Cross multiply
    78,414,853.40x = 117,622,280.10 × 52,586,820.80
  4. Step 4: Simplify right side
    78,414,853.40x = 6,185,381,765,706,105
  5. Step 5: Solve for x
    x = 6,185,381,765,706,105/78,414,853.40
  6. Step 6: Final answer
    x = 78,880,231.20

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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.