Home / 387,449,529.53-534,679,973.73-211,237,478.10

Finding the Fourth Proportional to 387,449,529.53, 534,679,973.73 and 211,237,478.10

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Solution

The fourth proportional to 387,449,529.53, 534,679,973.73 and 211,237,478.10 is: 291,507,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,449,529.53 : 534,679,973.73 = 211,237,478.10 : x
  2. Step 2: Convert to fraction form
    387,449,529.53/534,679,973.73 = 211,237,478.10/x
  3. Step 3: Cross multiply
    387,449,529.53x = 534,679,973.73 × 211,237,478.10
  4. Step 4: Simplify right side
    387,449,529.53x = 112,944,449,241,299,456
  5. Step 5: Solve for x
    x = 112,944,449,241,299,456/387,449,529.53
  6. Step 6: Final answer
    x = 291,507,514.23

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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.