Home / 722,268,961.40-996,731,310.76-440,011,391.87

Finding the Fourth Proportional to 722,268,961.40, 996,731,310.76 and 440,011,391.87

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Solution

The fourth proportional to 722,268,961.40, 996,731,310.76 and 440,011,391.87 is: 607,215,808.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,268,961.40 : 996,731,310.76 = 440,011,391.87 : x
  2. Step 2: Convert to fraction form
    722,268,961.40/996,731,310.76 = 440,011,391.87/x
  3. Step 3: Cross multiply
    722,268,961.40x = 996,731,310.76 × 440,011,391.87
  4. Step 4: Simplify right side
    722,268,961.40x = 438,573,131,369,308,928
  5. Step 5: Solve for x
    x = 438,573,131,369,308,928/722,268,961.40
  6. Step 6: Final answer
    x = 607,215,808.52

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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.