Home / 726,108,496.86-1,086,908,223.03-393,288,920.49

Finding the Fourth Proportional to 726,108,496.86, 1,086,908,223.03 and 393,288,920.49

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Solution

The fourth proportional to 726,108,496.86, 1,086,908,223.03 and 393,288,920.49 is: 588,712,242.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,108,496.86 : 1,086,908,223.03 = 393,288,920.49 : x
  2. Step 2: Convert to fraction form
    726,108,496.86/1,086,908,223.03 = 393,288,920.49/x
  3. Step 3: Cross multiply
    726,108,496.86x = 1,086,908,223.03 × 393,288,920.49
  4. Step 4: Simplify right side
    726,108,496.86x = 427,468,961,707,172,864
  5. Step 5: Solve for x
    x = 427,468,961,707,172,864/726,108,496.86
  6. Step 6: Final answer
    x = 588,712,242.81

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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.