Home / 387,172,833,927.72-534,300,171,910.40-211,193,134,890.17

Finding the Fourth Proportional to 387,172,833,927.72, 534,300,171,910.40 and 211,193,134,890.17

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Solution

The fourth proportional to 387,172,833,927.72, 534,300,171,910.40 and 211,193,134,890.17 is: 291,447,432,231.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,172,833,927.72 : 534,300,171,910.40 = 211,193,134,890.17 : x
  2. Step 2: Convert to fraction form
    387,172,833,927.72/534,300,171,910.40 = 211,193,134,890.17/x
  3. Step 3: Cross multiply
    387,172,833,927.72x = 534,300,171,910.40 × 211,193,134,890.17
  4. Step 4: Simplify right side
    387,172,833,927.72x = 112,840,528,278,114,139,111,424
  5. Step 5: Solve for x
    x = 112,840,528,278,114,139,111,424/387,172,833,927.72
  6. Step 6: Final answer
    x = 291,447,432,231.73

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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.