Home / 387,240,213.15-534,375,944.96-211,024,452.87

Finding the Fourth Proportional to 387,240,213.15, 534,375,944.96 and 211,024,452.87

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Solution

The fourth proportional to 387,240,213.15, 534,375,944.96 and 211,024,452.87 is: 291,205,271.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,240,213.15 : 534,375,944.96 = 211,024,452.87 : x
  2. Step 2: Convert to fraction form
    387,240,213.15/534,375,944.96 = 211,024,452.87/x
  3. Step 3: Cross multiply
    387,240,213.15x = 534,375,944.96 × 211,024,452.87
  4. Step 4: Simplify right side
    387,240,213.15x = 112,766,391,411,018,112
  5. Step 5: Solve for x
    x = 112,766,391,411,018,112/387,240,213.15
  6. Step 6: Final answer
    x = 291,205,271.51

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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.