Home / 387,675,465.92-534,993,806.24-211,467,301.28

Finding the Fourth Proportional to 387,675,465.92, 534,993,806.24 and 211,467,301.28

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Solution

The fourth proportional to 387,675,465.92, 534,993,806.24 and 211,467,301.28 is: 291,825,783.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,675,465.92 : 534,993,806.24 = 211,467,301.28 : x
  2. Step 2: Convert to fraction form
    387,675,465.92/534,993,806.24 = 211,467,301.28/x
  3. Step 3: Cross multiply
    387,675,465.92x = 534,993,806.24 × 211,467,301.28
  4. Step 4: Simplify right side
    387,675,465.92x = 113,133,696,403,355,728
  5. Step 5: Solve for x
    x = 113,133,696,403,355,728/387,675,465.92
  6. Step 6: Final answer
    x = 291,825,783.03

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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.