Home / 898,128,342.30-1,347,192,513.45-511,144,815.90

Finding the Fourth Proportional to 898,128,342.30, 1,347,192,513.45 and 511,144,815.90

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Solution

The fourth proportional to 898,128,342.30, 1,347,192,513.45 and 511,144,815.90 is: 766,717,223.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,128,342.30 : 1,347,192,513.45 = 511,144,815.90 : x
  2. Step 2: Convert to fraction form
    898,128,342.30/1,347,192,513.45 = 511,144,815.90/x
  3. Step 3: Cross multiply
    898,128,342.30x = 1,347,192,513.45 × 511,144,815.90
  4. Step 4: Simplify right side
    898,128,342.30x = 688,610,469,269,258,496
  5. Step 5: Solve for x
    x = 688,610,469,269,258,496/898,128,342.30
  6. Step 6: Final answer
    x = 766,717,223.85

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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.