Home / 127,193,872.20-190,790,808.30-45,405,102.30

Finding the Fourth Proportional to 127,193,872.20, 190,790,808.30 and 45,405,102.30

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Solution

The fourth proportional to 127,193,872.20, 190,790,808.30 and 45,405,102.30 is: 68,107,653.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,193,872.20 : 190,790,808.30 = 45,405,102.30 : x
  2. Step 2: Convert to fraction form
    127,193,872.20/190,790,808.30 = 45,405,102.30/x
  3. Step 3: Cross multiply
    127,193,872.20x = 190,790,808.30 × 45,405,102.30
  4. Step 4: Simplify right side
    127,193,872.20x = 8,662,876,168,761,189
  5. Step 5: Solve for x
    x = 8,662,876,168,761,189/127,193,872.20
  6. Step 6: Final answer
    x = 68,107,653.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.