Home / 15,718,913,398.62-21,694,002,688.68-8,946,378,688.59

Finding the Fourth Proportional to 15,718,913,398.62, 21,694,002,688.68 and 8,946,378,688.59

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Solution

The fourth proportional to 15,718,913,398.62, 21,694,002,688.68 and 8,946,378,688.59 is: 12,347,085,221.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,718,913,398.62 : 21,694,002,688.68 = 8,946,378,688.59 : x
  2. Step 2: Convert to fraction form
    15,718,913,398.62/21,694,002,688.68 = 8,946,378,688.59/x
  3. Step 3: Cross multiply
    15,718,913,398.62x = 21,694,002,688.68 × 8,946,378,688.59
  4. Step 4: Simplify right side
    15,718,913,398.62x = 194,082,763,324,220,932,096
  5. Step 5: Solve for x
    x = 194,082,763,324,220,932,096/15,718,913,398.62
  6. Step 6: Final answer
    x = 12,347,085,221.63

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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.