Home / 78,067,378.72-107,733,624.48-43,260,650.44

Finding the Fourth Proportional to 78,067,378.72, 107,733,624.48 and 43,260,650.44

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Solution

The fourth proportional to 78,067,378.72, 107,733,624.48 and 43,260,650.44 is: 59,700,053.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,067,378.72 : 107,733,624.48 = 43,260,650.44 : x
  2. Step 2: Convert to fraction form
    78,067,378.72/107,733,624.48 = 43,260,650.44/x
  3. Step 3: Cross multiply
    78,067,378.72x = 107,733,624.48 × 43,260,650.44
  4. Step 4: Simplify right side
    78,067,378.72x = 4,660,626,669,263,507
  5. Step 5: Solve for x
    x = 4,660,626,669,263,507/78,067,378.72
  6. Step 6: Final answer
    x = 59,700,053.28

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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.