Home / 825,836,169.79-1,139,678,578.04-508,479,499.80

Finding the Fourth Proportional to 825,836,169.79, 1,139,678,578.04 and 508,479,499.80

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Solution

The fourth proportional to 825,836,169.79, 1,139,678,578.04 and 508,479,499.80 is: 701,716,895.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,836,169.79 : 1,139,678,578.04 = 508,479,499.80 : x
  2. Step 2: Convert to fraction form
    825,836,169.79/1,139,678,578.04 = 508,479,499.80/x
  3. Step 3: Cross multiply
    825,836,169.79x = 1,139,678,578.04 × 508,479,499.80
  4. Step 4: Simplify right side
    825,836,169.79x = 579,503,193,286,313,728
  5. Step 5: Solve for x
    x = 579,503,193,286,313,728/825,836,169.79
  6. Step 6: Final answer
    x = 701,716,895.54

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1.5x scale

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.