Home / 211,399,849.44-317,127,622.86-78,434,612.52

Finding the Fourth Proportional to 211,399,849.44, 317,127,622.86 and 78,434,612.52

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Solution

The fourth proportional to 211,399,849.44, 317,127,622.86 and 78,434,612.52 is: 117,662,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,399,849.44 : 317,127,622.86 = 78,434,612.52 : x
  2. Step 2: Convert to fraction form
    211,399,849.44/317,127,622.86 = 78,434,612.52/x
  3. Step 3: Cross multiply
    211,399,849.44x = 317,127,622.86 × 78,434,612.52
  4. Step 4: Simplify right side
    211,399,849.44x = 24,873,782,218,412,796
  5. Step 5: Solve for x
    x = 24,873,782,218,412,796/211,399,849.44
  6. Step 6: Final answer
    x = 117,662,251.34

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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.