Home / 387,675,484.35-534,993,831.75-211,467,319.71

Finding the Fourth Proportional to 387,675,484.35, 534,993,831.75 and 211,467,319.71

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Solution

The fourth proportional to 387,675,484.35, 534,993,831.75 and 211,467,319.71 is: 291,825,808.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,675,484.35 : 534,993,831.75 = 211,467,319.71 : x
  2. Step 2: Convert to fraction form
    387,675,484.35/534,993,831.75 = 211,467,319.71/x
  3. Step 3: Cross multiply
    387,675,484.35x = 534,993,831.75 × 211,467,319.71
  4. Step 4: Simplify right side
    387,675,484.35x = 113,133,711,661,555,200
  5. Step 5: Solve for x
    x = 113,133,711,661,555,200/387,675,484.35
  6. Step 6: Final answer
    x = 291,825,808.51

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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.