Home / 319,273,934.40-478,981,760.40-146,709,136.80

Finding the Fourth Proportional to 319,273,934.40, 478,981,760.40 and 146,709,136.80

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Solution

The fourth proportional to 319,273,934.40, 478,981,760.40 and 146,709,136.80 is: 220,096,265.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,273,934.40 : 478,981,760.40 = 146,709,136.80 : x
  2. Step 2: Convert to fraction form
    319,273,934.40/478,981,760.40 = 146,709,136.80/x
  3. Step 3: Cross multiply
    319,273,934.40x = 478,981,760.40 × 146,709,136.80
  4. Step 4: Simplify right side
    319,273,934.40x = 70,271,000,611,228,424
  5. Step 5: Solve for x
    x = 70,271,000,611,228,424/319,273,934.40
  6. Step 6: Final answer
    x = 220,096,265.43

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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.