Home / 553,646,958.53-763,672,800-355,093,957.91

Finding the Fourth Proportional to 553,646,958.53, 763,672,800 and 355,093,957.91

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Solution

The fourth proportional to 553,646,958.53, 763,672,800 and 355,093,957.91 is: 489,798,766.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,646,958.53 : 763,672,800 = 355,093,957.91 : x
  2. Step 2: Convert to fraction form
    553,646,958.53/763,672,800 = 355,093,957.91/x
  3. Step 3: Cross multiply
    553,646,958.53x = 763,672,800 × 355,093,957.91
  4. Step 4: Simplify right side
    553,646,958.53x = 271,175,597,096,393,472
  5. Step 5: Solve for x
    x = 271,175,597,096,393,472/553,646,958.53
  6. Step 6: Final answer
    x = 489,798,766.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.