Home / 639,013,900,747.10-881,866,902,993.57-353,872,420,843.09

Finding the Fourth Proportional to 639,013,900,747.10, 881,866,902,993.57 and 353,872,420,843.09

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Solution

The fourth proportional to 639,013,900,747.10, 881,866,902,993.57 and 353,872,420,843.09 is: 488,359,291,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,013,900,747.10 : 881,866,902,993.57 = 353,872,420,843.09 : x
  2. Step 2: Convert to fraction form
    639,013,900,747.10/881,866,902,993.57 = 353,872,420,843.09/x
  3. Step 3: Cross multiply
    639,013,900,747.10x = 881,866,902,993.57 × 353,872,420,843.09
  4. Step 4: Simplify right side
    639,013,900,747.10x = 312,068,375,823,733,047,164,928
  5. Step 5: Solve for x
    x = 312,068,375,823,733,047,164,928/639,013,900,747.10
  6. Step 6: Final answer
    x = 488,359,291,494.10

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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.