Home / 729,835,084.34-1,007,164,398.21-395,299,284.02

Finding the Fourth Proportional to 729,835,084.34, 1,007,164,398.21 and 395,299,284.02

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Solution

The fourth proportional to 729,835,084.34, 1,007,164,398.21 and 395,299,284.02 is: 545,508,669.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,835,084.34 : 1,007,164,398.21 = 395,299,284.02 : x
  2. Step 2: Convert to fraction form
    729,835,084.34/1,007,164,398.21 = 395,299,284.02/x
  3. Step 3: Cross multiply
    729,835,084.34x = 1,007,164,398.21 × 395,299,284.02
  4. Step 4: Simplify right side
    729,835,084.34x = 398,131,365,502,847,168
  5. Step 5: Solve for x
    x = 398,131,365,502,847,168/729,835,084.34
  6. Step 6: Final answer
    x = 545,508,669.08

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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.