Home / 211,907,934.30-317,861,901.45-154,512,306.30

Finding the Fourth Proportional to 211,907,934.30, 317,861,901.45 and 154,512,306.30

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Solution

The fourth proportional to 211,907,934.30, 317,861,901.45 and 154,512,306.30 is: 231,768,459.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,907,934.30 : 317,861,901.45 = 154,512,306.30 : x
  2. Step 2: Convert to fraction form
    211,907,934.30/317,861,901.45 = 154,512,306.30/x
  3. Step 3: Cross multiply
    211,907,934.30x = 317,861,901.45 × 154,512,306.30
  4. Step 4: Simplify right side
    211,907,934.30x = 49,113,575,477,942,816
  5. Step 5: Solve for x
    x = 49,113,575,477,942,816/211,907,934.30
  6. Step 6: Final answer
    x = 231,768,459.45

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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.