Home / 15,718,913,393.90-21,694,002,682.16-8,946,378,683.87

Finding the Fourth Proportional to 15,718,913,393.90, 21,694,002,682.16 and 8,946,378,683.87

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Solution

The fourth proportional to 15,718,913,393.90, 21,694,002,682.16 and 8,946,378,683.87 is: 12,347,085,215.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,718,913,393.90 : 21,694,002,682.16 = 8,946,378,683.87 : x
  2. Step 2: Convert to fraction form
    15,718,913,393.90/21,694,002,682.16 = 8,946,378,683.87/x
  3. Step 3: Cross multiply
    15,718,913,393.90x = 21,694,002,682.16 × 8,946,378,683.87
  4. Step 4: Simplify right side
    15,718,913,393.90x = 194,082,763,163,450,114,048
  5. Step 5: Solve for x
    x = 194,082,763,163,450,114,048/15,718,913,393.90
  6. Step 6: Final answer
    x = 12,347,085,215.11

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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.