Home / 87,005,147.94-120,070,185.30-47,849,955.30

Finding the Fourth Proportional to 87,005,147.94, 120,070,185.30 and 47,849,955.30

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Solution

The fourth proportional to 87,005,147.94, 120,070,185.30 and 47,849,955.30 is: 66,034,632.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,005,147.94 : 120,070,185.30 = 47,849,955.30 : x
  2. Step 2: Convert to fraction form
    87,005,147.94/120,070,185.30 = 47,849,955.30/x
  3. Step 3: Cross multiply
    87,005,147.94x = 120,070,185.30 × 47,849,955.30
  4. Step 4: Simplify right side
    87,005,147.94x = 5,745,352,999,467,717
  5. Step 5: Solve for x
    x = 5,745,352,999,467,717/87,005,147.94
  6. Step 6: Final answer
    x = 66,034,632.84

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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.