Home / 127,568,774.20-191,197,703.80-66,124,057.85

Finding the Fourth Proportional to 127,568,774.20, 191,197,703.80 and 66,124,057.85

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Solution

The fourth proportional to 127,568,774.20, 191,197,703.80 and 66,124,057.85 is: 99,105,506.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,568,774.20 : 191,197,703.80 = 66,124,057.85 : x
  2. Step 2: Convert to fraction form
    127,568,774.20/191,197,703.80 = 66,124,057.85/x
  3. Step 3: Cross multiply
    127,568,774.20x = 191,197,703.80 × 66,124,057.85
  4. Step 4: Simplify right side
    127,568,774.20x = 12,642,768,027,419,014
  5. Step 5: Solve for x
    x = 12,642,768,027,419,014/127,568,774.20
  6. Step 6: Final answer
    x = 99,105,506.87

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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.