Home / 85,220,578-127,849,811.64-39,757,571.92

Finding the Fourth Proportional to 85,220,578, 127,849,811.64 and 39,757,571.92

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Solution

The fourth proportional to 85,220,578, 127,849,811.64 and 39,757,571.92 is: 59,645,196.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,220,578 : 127,849,811.64 = 39,757,571.92 : x
  2. Step 2: Convert to fraction form
    85,220,578/127,849,811.64 = 39,757,571.92/x
  3. Step 3: Cross multiply
    85,220,578x = 127,849,811.64 × 39,757,571.92
  4. Step 4: Simplify right side
    85,220,578x = 5,082,998,081,235,753
  5. Step 5: Solve for x
    x = 5,082,998,081,235,753/85,220,578
  6. Step 6: Final answer
    x = 59,645,196.04

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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.