Home / 515,077,855,554.78-772,732,015,757.91-156,957,857,087.40

Finding the Fourth Proportional to 515,077,855,554.78, 772,732,015,757.91 and 156,957,857,087.40

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Solution

The fourth proportional to 515,077,855,554.78, 772,732,015,757.91 and 156,957,857,087.40 is: 235,471,900,001.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,077,855,554.78 : 772,732,015,757.91 = 156,957,857,087.40 : x
  2. Step 2: Convert to fraction form
    515,077,855,554.78/772,732,015,757.91 = 156,957,857,087.40/x
  3. Step 3: Cross multiply
    515,077,855,554.78x = 772,732,015,757.91 × 156,957,857,087.40
  4. Step 4: Simplify right side
    515,077,855,554.78x = 121,286,361,296,188,557,230,080
  5. Step 5: Solve for x
    x = 121,286,361,296,188,557,230,080/515,077,855,554.78
  6. Step 6: Final answer
    x = 235,471,900,001.51

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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.