Home / 7,621,517,188.18-11,428,350,426.09-3,420,868,892.86

Finding the Fourth Proportional to 7,621,517,188.18, 11,428,350,426.09 and 3,420,868,892.86

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Solution

The fourth proportional to 7,621,517,188.18, 11,428,350,426.09 and 3,420,868,892.86 is: 5,129,541,468.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621,517,188.18 : 11,428,350,426.09 = 3,420,868,892.86 : x
  2. Step 2: Convert to fraction form
    7,621,517,188.18/11,428,350,426.09 = 3,420,868,892.86/x
  3. Step 3: Cross multiply
    7,621,517,188.18x = 11,428,350,426.09 × 3,420,868,892.86
  4. Step 4: Simplify right side
    7,621,517,188.18x = 39,094,888,469,314,609,152
  5. Step 5: Solve for x
    x = 39,094,888,469,314,609,152/7,621,517,188.18
  6. Step 6: Final answer
    x = 5,129,541,468.46

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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.