Home / 11,986,947,008.10-17,980,420,512.15-11,415,541,644.90

Finding the Fourth Proportional to 11,986,947,008.10, 17,980,420,512.15 and 11,415,541,644.90

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Solution

The fourth proportional to 11,986,947,008.10, 17,980,420,512.15 and 11,415,541,644.90 is: 17,123,312,467.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986,947,008.10 : 17,980,420,512.15 = 11,415,541,644.90 : x
  2. Step 2: Convert to fraction form
    11,986,947,008.10/17,980,420,512.15 = 11,415,541,644.90/x
  3. Step 3: Cross multiply
    11,986,947,008.10x = 17,980,420,512.15 × 11,415,541,644.90
  4. Step 4: Simplify right side
    11,986,947,008.10x = 205,256,239,149,262,536,704
  5. Step 5: Solve for x
    x = 205,256,239,149,262,536,704/11,986,947,008.10
  6. Step 6: Final answer
    x = 17,123,312,467.35

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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.