Home / 136,250,488.92-187,997,606.46-78,292,539.48

Finding the Fourth Proportional to 136,250,488.92, 187,997,606.46 and 78,292,539.48

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Solution

The fourth proportional to 136,250,488.92, 187,997,606.46 and 78,292,539.48 is: 108,027,575.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,250,488.92 : 187,997,606.46 = 78,292,539.48 : x
  2. Step 2: Convert to fraction form
    136,250,488.92/187,997,606.46 = 78,292,539.48/x
  3. Step 3: Cross multiply
    136,250,488.92x = 187,997,606.46 × 78,292,539.48
  4. Step 4: Simplify right side
    136,250,488.92x = 14,718,810,025,915,054
  5. Step 5: Solve for x
    x = 14,718,810,025,915,054/136,250,488.92
  6. Step 6: Final answer
    x = 108,027,575.85

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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.