Home / 215,758,834.10-323,638,251.15-212,175,653.30

Finding the Fourth Proportional to 215,758,834.10, 323,638,251.15 and 212,175,653.30

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Solution

The fourth proportional to 215,758,834.10, 323,638,251.15 and 212,175,653.30 is: 318,263,479.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,758,834.10 : 323,638,251.15 = 212,175,653.30 : x
  2. Step 2: Convert to fraction form
    215,758,834.10/323,638,251.15 = 212,175,653.30/x
  3. Step 3: Cross multiply
    215,758,834.10x = 323,638,251.15 × 212,175,653.30
  4. Step 4: Simplify right side
    215,758,834.10x = 68,668,157,370,620,728
  5. Step 5: Solve for x
    x = 68,668,157,370,620,728/215,758,834.10
  6. Step 6: Final answer
    x = 318,263,479.95

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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.