Home / 819,418,042.40-1,229,127,063.60-359,576,506.40

Finding the Fourth Proportional to 819,418,042.40, 1,229,127,063.60 and 359,576,506.40

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Solution

The fourth proportional to 819,418,042.40, 1,229,127,063.60 and 359,576,506.40 is: 539,364,759.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,418,042.40 : 1,229,127,063.60 = 359,576,506.40 : x
  2. Step 2: Convert to fraction form
    819,418,042.40/1,229,127,063.60 = 359,576,506.40/x
  3. Step 3: Cross multiply
    819,418,042.40x = 1,229,127,063.60 × 359,576,506.40
  4. Step 4: Simplify right side
    819,418,042.40x = 441,965,215,450,978,560
  5. Step 5: Solve for x
    x = 441,965,215,450,978,560/819,418,042.40
  6. Step 6: Final answer
    x = 539,364,759.60

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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.