Home / 137,608,669.87-189,899,995.39-75,729,008.43

Finding the Fourth Proportional to 137,608,669.87, 189,899,995.39 and 75,729,008.43

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Solution

The fourth proportional to 137,608,669.87, 189,899,995.39 and 75,729,008.43 is: 104,506,048.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,608,669.87 : 189,899,995.39 = 75,729,008.43 : x
  2. Step 2: Convert to fraction form
    137,608,669.87/189,899,995.39 = 75,729,008.43/x
  3. Step 3: Cross multiply
    137,608,669.87x = 189,899,995.39 × 75,729,008.43
  4. Step 4: Simplify right side
    137,608,669.87x = 14,380,938,351,915,904
  5. Step 5: Solve for x
    x = 14,380,938,351,915,904/137,608,669.87
  6. Step 6: Final answer
    x = 104,506,048.68

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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.