Home / 68,194,535,817.34-102,290,678,344.24-20,387,657,147.24

Finding the Fourth Proportional to 68,194,535,817.34, 102,290,678,344.24 and 20,387,657,147.24

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Solution

The fourth proportional to 68,194,535,817.34, 102,290,678,344.24 and 20,387,657,147.24 is: 30,581,149,273.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,194,535,817.34 : 102,290,678,344.24 = 20,387,657,147.24 : x
  2. Step 2: Convert to fraction form
    68,194,535,817.34/102,290,678,344.24 = 20,387,657,147.24/x
  3. Step 3: Cross multiply
    68,194,535,817.34x = 102,290,678,344.24 × 20,387,657,147.24
  4. Step 4: Simplify right side
    68,194,535,817.34x = 2,085,467,279,440,972,873,728
  5. Step 5: Solve for x
    x = 2,085,467,279,440,972,873,728/68,194,535,817.34
  6. Step 6: Final answer
    x = 30,581,149,273.12

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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.