Home / 722,545,809.52-997,033,249.32-400,665,683.71

Finding the Fourth Proportional to 722,545,809.52, 997,033,249.32 and 400,665,683.71

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Solution

The fourth proportional to 722,545,809.52, 997,033,249.32 and 400,665,683.71 is: 552,874,299.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,545,809.52 : 997,033,249.32 = 400,665,683.71 : x
  2. Step 2: Convert to fraction form
    722,545,809.52/997,033,249.32 = 400,665,683.71/x
  3. Step 3: Cross multiply
    722,545,809.52x = 997,033,249.32 × 400,665,683.71
  4. Step 4: Simplify right side
    722,545,809.52x = 399,477,008,520,400,704
  5. Step 5: Solve for x
    x = 399,477,008,520,400,704/722,545,809.52
  6. Step 6: Final answer
    x = 552,874,299.81

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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.