Home / 387,747,220.47-535,088,624.85-220,483,494.33

Finding the Fourth Proportional to 387,747,220.47, 535,088,624.85 and 220,483,494.33

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Solution

The fourth proportional to 387,747,220.47, 535,088,624.85 and 220,483,494.33 is: 304,265,778.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,747,220.47 : 535,088,624.85 = 220,483,494.33 : x
  2. Step 2: Convert to fraction form
    387,747,220.47/535,088,624.85 = 220,483,494.33/x
  3. Step 3: Cross multiply
    387,747,220.47x = 535,088,624.85 × 220,483,494.33
  4. Step 4: Simplify right side
    387,747,220.47x = 117,978,209,783,162,480
  5. Step 5: Solve for x
    x = 117,978,209,783,162,480/387,747,220.47
  6. Step 6: Final answer
    x = 304,265,778.21

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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.