Home / 726,085,981.18-1,086,874,457.88-393,266,367.92

Finding the Fourth Proportional to 726,085,981.18, 1,086,874,457.88 and 393,266,367.92

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Solution

The fourth proportional to 726,085,981.18, 1,086,874,457.88 and 393,266,367.92 is: 588,678,450.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,085,981.18 : 1,086,874,457.88 = 393,266,367.92 : x
  2. Step 2: Convert to fraction form
    726,085,981.18/1,086,874,457.88 = 393,266,367.92/x
  3. Step 3: Cross multiply
    726,085,981.18x = 1,086,874,457.88 × 393,266,367.92
  4. Step 4: Simplify right side
    726,085,981.18x = 427,431,170,436,593,856
  5. Step 5: Solve for x
    x = 427,431,170,436,593,856/726,085,981.18
  6. Step 6: Final answer
    x = 588,678,450.64

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1.5x scale

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.