Home / 538,066,843.20-807,100,264.80-407,970,086.40

Finding the Fourth Proportional to 538,066,843.20, 807,100,264.80 and 407,970,086.40

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Solution

The fourth proportional to 538,066,843.20, 807,100,264.80 and 407,970,086.40 is: 611,955,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,066,843.20 : 807,100,264.80 = 407,970,086.40 : x
  2. Step 2: Convert to fraction form
    538,066,843.20/807,100,264.80 = 407,970,086.40/x
  3. Step 3: Cross multiply
    538,066,843.20x = 807,100,264.80 × 407,970,086.40
  4. Step 4: Simplify right side
    538,066,843.20x = 329,272,764,763,918,848
  5. Step 5: Solve for x
    x = 329,272,764,763,918,848/538,066,843.20
  6. Step 6: Final answer
    x = 611,955,129.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.