Home / 285,162,136.40-428,656,495.80-264,943,758.80

Finding the Fourth Proportional to 285,162,136.40, 428,656,495.80 and 264,943,758.80

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Solution

The fourth proportional to 285,162,136.40, 428,656,495.80 and 264,943,758.80 is: 398,264,175.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,162,136.40 : 428,656,495.80 = 264,943,758.80 : x
  2. Step 2: Convert to fraction form
    285,162,136.40/428,656,495.80 = 264,943,758.80/x
  3. Step 3: Cross multiply
    285,162,136.40x = 428,656,495.80 × 264,943,758.80
  4. Step 4: Simplify right side
    285,162,136.40x = 113,569,863,231,288,416
  5. Step 5: Solve for x
    x = 113,569,863,231,288,416/285,162,136.40
  6. Step 6: Final answer
    x = 398,264,175.83

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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.