Home / 387,675,484.85-534,993,832.44-211,467,320.21

Finding the Fourth Proportional to 387,675,484.85, 534,993,832.44 and 211,467,320.21

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Solution

The fourth proportional to 387,675,484.85, 534,993,832.44 and 211,467,320.21 is: 291,825,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,675,484.85 : 534,993,832.44 = 211,467,320.21 : x
  2. Step 2: Convert to fraction form
    387,675,484.85/534,993,832.44 = 211,467,320.21/x
  3. Step 3: Cross multiply
    387,675,484.85x = 534,993,832.44 × 211,467,320.21
  4. Step 4: Simplify right side
    387,675,484.85x = 113,133,712,072,289,600
  5. Step 5: Solve for x
    x = 113,133,712,072,289,600/387,675,484.85
  6. Step 6: Final answer
    x = 291,825,809.20

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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.