Home / 211,217,680.80-317,013,145.20-124,848,093.60

Finding the Fourth Proportional to 211,217,680.80, 317,013,145.20 and 124,848,093.60

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Solution

The fourth proportional to 211,217,680.80, 317,013,145.20 and 124,848,093.60 is: 187,382,451.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,217,680.80 : 317,013,145.20 = 124,848,093.60 : x
  2. Step 2: Convert to fraction form
    211,217,680.80/317,013,145.20 = 124,848,093.60/x
  3. Step 3: Cross multiply
    211,217,680.80x = 317,013,145.20 × 124,848,093.60
  4. Step 4: Simplify right side
    211,217,680.80x = 39,578,486,824,359,984
  5. Step 5: Solve for x
    x = 39,578,486,824,359,984/211,217,680.80
  6. Step 6: Final answer
    x = 187,382,451.48

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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.