Home / 15,880,905,761.51-21,916,042,950.90-8,647,349,794.49

Finding the Fourth Proportional to 15,880,905,761.51, 21,916,042,950.90 and 8,647,349,794.49

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Solution

The fourth proportional to 15,880,905,761.51, 21,916,042,950.90 and 8,647,349,794.49 is: 11,933,556,709.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,880,905,761.51 : 21,916,042,950.90 = 8,647,349,794.49 : x
  2. Step 2: Convert to fraction form
    15,880,905,761.51/21,916,042,950.90 = 8,647,349,794.49/x
  3. Step 3: Cross multiply
    15,880,905,761.51x = 21,916,042,950.90 × 8,647,349,794.49
  4. Step 4: Simplify right side
    15,880,905,761.51x = 189,515,689,507,499,147,264
  5. Step 5: Solve for x
    x = 189,515,689,507,499,147,264/15,880,905,761.51
  6. Step 6: Final answer
    x = 11,933,556,709.77

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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.