Home / 137,738,156.40-190,087,249.08-75,858,479.28

Finding the Fourth Proportional to 137,738,156.40, 190,087,249.08 and 75,858,479.28

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Solution

The fourth proportional to 137,738,156.40, 190,087,249.08 and 75,858,479.28 is: 104,689,434.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,738,156.40 : 190,087,249.08 = 75,858,479.28 : x
  2. Step 2: Convert to fraction form
    137,738,156.40/190,087,249.08 = 75,858,479.28/x
  3. Step 3: Cross multiply
    137,738,156.40x = 190,087,249.08 × 75,858,479.28
  4. Step 4: Simplify right side
    137,738,156.40x = 14,419,729,645,727,380
  5. Step 5: Solve for x
    x = 14,419,729,645,727,380/137,738,156.40
  6. Step 6: Final answer
    x = 104,689,434.09

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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.