Home / 992,737,728.40-1,489,106,592.60-265,726,440.40

Finding the Fourth Proportional to 992,737,728.40, 1,489,106,592.60 and 265,726,440.40

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Solution

The fourth proportional to 992,737,728.40, 1,489,106,592.60 and 265,726,440.40 is: 398,589,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,737,728.40 : 1,489,106,592.60 = 265,726,440.40 : x
  2. Step 2: Convert to fraction form
    992,737,728.40/1,489,106,592.60 = 265,726,440.40/x
  3. Step 3: Cross multiply
    992,737,728.40x = 1,489,106,592.60 × 265,726,440.40
  4. Step 4: Simplify right side
    992,737,728.40x = 395,694,994,227,770,944
  5. Step 5: Solve for x
    x = 395,694,994,227,770,944/992,737,728.40
  6. Step 6: Final answer
    x = 398,589,660.60

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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.