Home / 387,248,233.86-534,388,989.23-211,032,633.42

Finding the Fourth Proportional to 387,248,233.86, 534,388,989.23 and 211,032,633.42

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Solution

The fourth proportional to 387,248,233.86, 534,388,989.23 and 211,032,633.42 is: 291,217,637.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,248,233.86 : 534,388,989.23 = 211,032,633.42 : x
  2. Step 2: Convert to fraction form
    387,248,233.86/534,388,989.23 = 211,032,633.42/x
  3. Step 3: Cross multiply
    387,248,233.86x = 534,388,989.23 × 211,032,633.42
  4. Step 4: Simplify right side
    387,248,233.86x = 112,773,515,667,595,120
  5. Step 5: Solve for x
    x = 112,773,515,667,595,120/387,248,233.86
  6. Step 6: Final answer
    x = 291,217,637.18

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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.