Home / 639,013,900,640.20-881,866,902,846.08-353,872,420,736.16

Finding the Fourth Proportional to 639,013,900,640.20, 881,866,902,846.08 and 353,872,420,736.16

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Solution

The fourth proportional to 639,013,900,640.20, 881,866,902,846.08 and 353,872,420,736.16 is: 488,359,291,346.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,013,900,640.20 : 881,866,902,846.08 = 353,872,420,736.16 : x
  2. Step 2: Convert to fraction form
    639,013,900,640.20/881,866,902,846.08 = 353,872,420,736.16/x
  3. Step 3: Cross multiply
    639,013,900,640.20x = 881,866,902,846.08 × 353,872,420,736.16
  4. Step 4: Simplify right side
    639,013,900,640.20x = 312,068,375,677,242,315,898,880
  5. Step 5: Solve for x
    x = 312,068,375,677,242,315,898,880/639,013,900,640.20
  6. Step 6: Final answer
    x = 488,359,291,346.55

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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.