Home / 1,422,619,559.20-2,135,123,732.40-647,458,112.80

Finding the Fourth Proportional to 1,422,619,559.20, 2,135,123,732.40 and 647,458,112.80

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Solution

The fourth proportional to 1,422,619,559.20, 2,135,123,732.40 and 647,458,112.80 is: 971,730,757.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,619,559.20 : 2,135,123,732.40 = 647,458,112.80 : x
  2. Step 2: Convert to fraction form
    1,422,619,559.20/2,135,123,732.40 = 647,458,112.80/x
  3. Step 3: Cross multiply
    1,422,619,559.20x = 2,135,123,732.40 × 647,458,112.80
  4. Step 4: Simplify right side
    1,422,619,559.20x = 1,382,403,182,374,196,224
  5. Step 5: Solve for x
    x = 1,382,403,182,374,196,224/1,422,619,559.20
  6. Step 6: Final answer
    x = 971,730,757.84

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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.