Home / 781,854,137.82-1,078,979,780.41-460,004,571.07

Finding the Fourth Proportional to 781,854,137.82, 1,078,979,780.41 and 460,004,571.07

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Solution

The fourth proportional to 781,854,137.82, 1,078,979,780.41 and 460,004,571.07 is: 634,818,704.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,854,137.82 : 1,078,979,780.41 = 460,004,571.07 : x
  2. Step 2: Convert to fraction form
    781,854,137.82/1,078,979,780.41 = 460,004,571.07/x
  3. Step 3: Cross multiply
    781,854,137.82x = 1,078,979,780.41 × 460,004,571.07
  4. Step 4: Simplify right side
    781,854,137.82x = 496,335,631,080,704,896
  5. Step 5: Solve for x
    x = 496,335,631,080,704,896/781,854,137.82
  6. Step 6: Final answer
    x = 634,818,704.76

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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.