Home / 78,548,853.92-117,768,504.24-34,805,821.28

Finding the Fourth Proportional to 78,548,853.92, 117,768,504.24 and 34,805,821.28

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Solution

The fourth proportional to 78,548,853.92, 117,768,504.24 and 34,805,821.28 is: 52,184,459.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,548,853.92 : 117,768,504.24 = 34,805,821.28 : x
  2. Step 2: Convert to fraction form
    78,548,853.92/117,768,504.24 = 34,805,821.28/x
  3. Step 3: Cross multiply
    78,548,853.92x = 117,768,504.24 × 34,805,821.28
  4. Step 4: Simplify right side
    78,548,853.92x = 4,099,029,510,990,362
  5. Step 5: Solve for x
    x = 4,099,029,510,990,362/78,548,853.92
  6. Step 6: Final answer
    x = 52,184,459.82

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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.