Home / 459,324,007.40-688,986,011.10-419,147,067.80

Finding the Fourth Proportional to 459,324,007.40, 688,986,011.10 and 419,147,067.80

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Solution

The fourth proportional to 459,324,007.40, 688,986,011.10 and 419,147,067.80 is: 628,720,601.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,324,007.40 : 688,986,011.10 = 419,147,067.80 : x
  2. Step 2: Convert to fraction form
    459,324,007.40/688,986,011.10 = 419,147,067.80/x
  3. Step 3: Cross multiply
    459,324,007.40x = 688,986,011.10 × 419,147,067.80
  4. Step 4: Simplify right side
    459,324,007.40x = 288,786,466,307,783,296
  5. Step 5: Solve for x
    x = 288,786,466,307,783,296/459,324,007.40
  6. Step 6: Final answer
    x = 628,720,601.70

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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.