Home / 77,642,917.94-107,146,487.85-42,835,889.54

Finding the Fourth Proportional to 77,642,917.94, 107,146,487.85 and 42,835,889.54

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Solution

The fourth proportional to 77,642,917.94, 107,146,487.85 and 42,835,889.54 is: 59,113,119.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,642,917.94 : 107,146,487.85 = 42,835,889.54 : x
  2. Step 2: Convert to fraction form
    77,642,917.94/107,146,487.85 = 42,835,889.54/x
  3. Step 3: Cross multiply
    77,642,917.94x = 107,146,487.85 × 42,835,889.54
  4. Step 4: Simplify right side
    77,642,917.94x = 4,589,715,118,248,783
  5. Step 5: Solve for x
    x = 4,589,715,118,248,783/77,642,917.94
  6. Step 6: Final answer
    x = 59,113,119.91

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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.