Home / 137,738,142.40-190,087,229.76-75,858,465.28

Finding the Fourth Proportional to 137,738,142.40, 190,087,229.76 and 75,858,465.28

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Solution

The fourth proportional to 137,738,142.40, 190,087,229.76 and 75,858,465.28 is: 104,689,414.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,738,142.40 : 190,087,229.76 = 75,858,465.28 : x
  2. Step 2: Convert to fraction form
    137,738,142.40/190,087,229.76 = 75,858,465.28/x
  3. Step 3: Cross multiply
    137,738,142.40x = 190,087,229.76 × 75,858,465.28
  4. Step 4: Simplify right side
    137,738,142.40x = 14,419,725,518,920,342
  5. Step 5: Solve for x
    x = 14,419,725,518,920,342/137,738,142.40
  6. Step 6: Final answer
    x = 104,689,414.77

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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.