Home / 90,773,135.70-135,451,714.38-80,990,509.74

Finding the Fourth Proportional to 90,773,135.70, 135,451,714.38 and 80,990,509.74

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Solution

The fourth proportional to 90,773,135.70, 135,451,714.38 and 80,990,509.74 is: 120,854,075.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,773,135.70 : 135,451,714.38 = 80,990,509.74 : x
  2. Step 2: Convert to fraction form
    90,773,135.70/135,451,714.38 = 80,990,509.74/x
  3. Step 3: Cross multiply
    90,773,135.70x = 135,451,714.38 × 80,990,509.74
  4. Step 4: Simplify right side
    90,773,135.70x = 10,970,303,392,793,086
  5. Step 5: Solve for x
    x = 10,970,303,392,793,086/90,773,135.70
  6. Step 6: Final answer
    x = 120,854,075.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.