Home / 211,633,304.32-317,490,837.66-80,465,380.89

Finding the Fourth Proportional to 211,633,304.32, 317,490,837.66 and 80,465,380.89

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Solution

The fourth proportional to 211,633,304.32, 317,490,837.66 and 80,465,380.89 is: 120,713,614.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,633,304.32 : 317,490,837.66 = 80,465,380.89 : x
  2. Step 2: Convert to fraction form
    211,633,304.32/317,490,837.66 = 80,465,380.89/x
  3. Step 3: Cross multiply
    211,633,304.32x = 317,490,837.66 × 80,465,380.89
  4. Step 4: Simplify right side
    211,633,304.32x = 25,547,021,180,987,232
  5. Step 5: Solve for x
    x = 25,547,021,180,987,232/211,633,304.32
  6. Step 6: Final answer
    x = 120,713,614.82

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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.