Home / 387,675,466.35-534,993,806.85-211,467,301.71

Finding the Fourth Proportional to 387,675,466.35, 534,993,806.85 and 211,467,301.71

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Solution

The fourth proportional to 387,675,466.35, 534,993,806.85 and 211,467,301.71 is: 291,825,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,675,466.35 : 534,993,806.85 = 211,467,301.71 : x
  2. Step 2: Convert to fraction form
    387,675,466.35/534,993,806.85 = 211,467,301.71/x
  3. Step 3: Cross multiply
    387,675,466.35x = 534,993,806.85 × 211,467,301.71
  4. Step 4: Simplify right side
    387,675,466.35x = 113,133,696,762,398,128
  5. Step 5: Solve for x
    x = 113,133,696,762,398,128/387,675,466.35
  6. Step 6: Final answer
    x = 291,825,783.64

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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.