Home / 139,959,343.74-193,143,977.51-78,079,682.37

Finding the Fourth Proportional to 139,959,343.74, 193,143,977.51 and 78,079,682.37

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Solution

The fourth proportional to 139,959,343.74, 193,143,977.51 and 78,079,682.37 is: 107,750,008.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,959,343.74 : 193,143,977.51 = 78,079,682.37 : x
  2. Step 2: Convert to fraction form
    139,959,343.74/193,143,977.51 = 78,079,682.37/x
  3. Step 3: Cross multiply
    139,959,343.74x = 193,143,977.51 × 78,079,682.37
  4. Step 4: Simplify right side
    139,959,343.74x = 15,080,620,415,268,826
  5. Step 5: Solve for x
    x = 15,080,620,415,268,826/139,959,343.74
  6. Step 6: Final answer
    x = 107,750,008.05

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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.