Home / 729,762,388.88-1,007,071,199.84-395,234,713.60

Finding the Fourth Proportional to 729,762,388.88, 1,007,071,199.84 and 395,234,713.60

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Solution

The fourth proportional to 729,762,388.88, 1,007,071,199.84 and 395,234,713.60 is: 545,423,419.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,762,388.88 : 1,007,071,199.84 = 395,234,713.60 : x
  2. Step 2: Convert to fraction form
    729,762,388.88/1,007,071,199.84 = 395,234,713.60/x
  3. Step 3: Cross multiply
    729,762,388.88x = 1,007,071,199.84 × 395,234,713.60
  4. Step 4: Simplify right side
    729,762,388.88x = 398,029,497,243,570,816
  5. Step 5: Solve for x
    x = 398,029,497,243,570,816/729,762,388.88
  6. Step 6: Final answer
    x = 545,423,419.06

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1.5x scale

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.