Home / 137,240,772.87-189,395,557.05-74,519,514.41

Finding the Fourth Proportional to 137,240,772.87, 189,395,557.05 and 74,519,514.41

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Solution

The fourth proportional to 137,240,772.87, 189,395,557.05 and 74,519,514.41 is: 102,838,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,240,772.87 : 189,395,557.05 = 74,519,514.41 : x
  2. Step 2: Convert to fraction form
    137,240,772.87/189,395,557.05 = 74,519,514.41/x
  3. Step 3: Cross multiply
    137,240,772.87x = 189,395,557.05 × 74,519,514.41
  4. Step 4: Simplify right side
    137,240,772.87x = 14,113,664,942,755,726
  5. Step 5: Solve for x
    x = 14,113,664,942,755,726/137,240,772.87
  6. Step 6: Final answer
    x = 102,838,716.57

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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.