Home / 77,709,348.42-107,287,297.78-49,467,656.37

Finding the Fourth Proportional to 77,709,348.42, 107,287,297.78 and 49,467,656.37

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Solution

The fourth proportional to 77,709,348.42, 107,287,297.78 and 49,467,656.37 is: 68,296,173.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,709,348.42 : 107,287,297.78 = 49,467,656.37 : x
  2. Step 2: Convert to fraction form
    77,709,348.42/107,287,297.78 = 49,467,656.37/x
  3. Step 3: Cross multiply
    77,709,348.42x = 107,287,297.78 × 49,467,656.37
  4. Step 4: Simplify right side
    77,709,348.42x = 5,307,251,179,446,904
  5. Step 5: Solve for x
    x = 5,307,251,179,446,904/77,709,348.42
  6. Step 6: Final answer
    x = 68,296,173.98

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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.