Home / 775,373,419.97-1,070,022,148.43-422,950,978.03

Finding the Fourth Proportional to 775,373,419.97, 1,070,022,148.43 and 422,950,978.03

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Solution

The fourth proportional to 775,373,419.97, 1,070,022,148.43 and 422,950,978.03 is: 583,676,074.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,373,419.97 : 1,070,022,148.43 = 422,950,978.03 : x
  2. Step 2: Convert to fraction form
    775,373,419.97/1,070,022,148.43 = 422,950,978.03/x
  3. Step 3: Cross multiply
    775,373,419.97x = 1,070,022,148.43 × 422,950,978.03
  4. Step 4: Simplify right side
    775,373,419.97x = 452,566,914,187,440,448
  5. Step 5: Solve for x
    x = 452,566,914,187,440,448/775,373,419.97
  6. Step 6: Final answer
    x = 583,676,074.69

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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.