Home / 1,383,854,644.26-1,909,718,163.81-781,152,156.90

Finding the Fourth Proportional to 1,383,854,644.26, 1,909,718,163.81 and 781,152,156.90

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Solution

The fourth proportional to 1,383,854,644.26, 1,909,718,163.81 and 781,152,156.90 is: 1,077,989,273.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,854,644.26 : 1,909,718,163.81 = 781,152,156.90 : x
  2. Step 2: Convert to fraction form
    1,383,854,644.26/1,909,718,163.81 = 781,152,156.90/x
  3. Step 3: Cross multiply
    1,383,854,644.26x = 1,909,718,163.81 × 781,152,156.90
  4. Step 4: Simplify right side
    1,383,854,644.26x = 1,491,780,462,731,288,832
  5. Step 5: Solve for x
    x = 1,491,780,462,731,288,832/1,383,854,644.26
  6. Step 6: Final answer
    x = 1,077,989,273.60

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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.