Home / 15,880,905,754.65-21,916,042,941.41-8,647,349,787.62

Finding the Fourth Proportional to 15,880,905,754.65, 21,916,042,941.41 and 8,647,349,787.62

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Solution

The fourth proportional to 15,880,905,754.65, 21,916,042,941.41 and 8,647,349,787.62 is: 11,933,556,700.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,880,905,754.65 : 21,916,042,941.41 = 8,647,349,787.62 : x
  2. Step 2: Convert to fraction form
    15,880,905,754.65/21,916,042,941.41 = 8,647,349,787.62/x
  3. Step 3: Cross multiply
    15,880,905,754.65x = 21,916,042,941.41 × 8,647,349,787.62
  4. Step 4: Simplify right side
    15,880,905,754.65x = 189,515,689,274,828,947,456
  5. Step 5: Solve for x
    x = 189,515,689,274,828,947,456/15,880,905,754.65
  6. Step 6: Final answer
    x = 11,933,556,700.27

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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.