Home / 211,633,304.82-317,490,838.41-80,465,381.39

Finding the Fourth Proportional to 211,633,304.82, 317,490,838.41 and 80,465,381.39

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Solution

The fourth proportional to 211,633,304.82, 317,490,838.41 and 80,465,381.39 is: 120,713,615.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,633,304.82 : 317,490,838.41 = 80,465,381.39 : x
  2. Step 2: Convert to fraction form
    211,633,304.82/317,490,838.41 = 80,465,381.39/x
  3. Step 3: Cross multiply
    211,633,304.82x = 317,490,838.41 × 80,465,381.39
  4. Step 4: Simplify right side
    211,633,304.82x = 25,547,021,400,491,512
  5. Step 5: Solve for x
    x = 25,547,021,400,491,512/211,633,304.82
  6. Step 6: Final answer
    x = 120,713,615.57

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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.