Home / 485,532,149.09-670,086,290.84-297,485,238.83

Finding the Fourth Proportional to 485,532,149.09, 670,086,290.84 and 297,485,238.83

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Solution

The fourth proportional to 485,532,149.09, 670,086,290.84 and 297,485,238.83 is: 410,561,444.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,532,149.09 : 670,086,290.84 = 297,485,238.83 : x
  2. Step 2: Convert to fraction form
    485,532,149.09/670,086,290.84 = 297,485,238.83/x
  3. Step 3: Cross multiply
    485,532,149.09x = 670,086,290.84 × 297,485,238.83
  4. Step 4: Simplify right side
    485,532,149.09x = 199,340,780,262,408,384
  5. Step 5: Solve for x
    x = 199,340,780,262,408,384/485,532,149.09
  6. Step 6: Final answer
    x = 410,561,444.05

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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.