Home / 387,306,395.86-534,494,027.97-211,105,803.73

Finding the Fourth Proportional to 387,306,395.86, 534,494,027.97 and 211,105,803.73

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Solution

The fourth proportional to 387,306,395.86, 534,494,027.97 and 211,105,803.73 is: 291,332,114.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,306,395.86 : 534,494,027.97 = 211,105,803.73 : x
  2. Step 2: Convert to fraction form
    387,306,395.86/534,494,027.97 = 211,105,803.73/x
  3. Step 3: Cross multiply
    387,306,395.86x = 534,494,027.97 × 211,105,803.73
  4. Step 4: Simplify right side
    387,306,395.86x = 112,834,791,363,491,952
  5. Step 5: Solve for x
    x = 112,834,791,363,491,952/387,306,395.86
  6. Step 6: Final answer
    x = 291,332,114.75

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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.