Home / 78,067,407.90-107,733,664.74-43,260,679.62

Finding the Fourth Proportional to 78,067,407.90, 107,733,664.74 and 43,260,679.62

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Solution

The fourth proportional to 78,067,407.90, 107,733,664.74 and 43,260,679.62 is: 59,700,093.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,067,407.90 : 107,733,664.74 = 43,260,679.62 : x
  2. Step 2: Convert to fraction form
    78,067,407.90/107,733,664.74 = 43,260,679.62/x
  3. Step 3: Cross multiply
    78,067,407.90x = 107,733,664.74 × 43,260,679.62
  4. Step 4: Simplify right side
    78,067,407.90x = 4,660,631,554,605,630
  5. Step 5: Solve for x
    x = 4,660,631,554,605,630/78,067,407.90
  6. Step 6: Final answer
    x = 59,700,093.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.