Home / 639,013,900,754.10-881,866,903,003.26-353,872,420,850.14

Finding the Fourth Proportional to 639,013,900,754.10, 881,866,903,003.26 and 353,872,420,850.14

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Solution

The fourth proportional to 639,013,900,754.10, 881,866,903,003.26 and 353,872,420,850.14 is: 488,359,291,503.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,013,900,754.10 : 881,866,903,003.26 = 353,872,420,850.14 : x
  2. Step 2: Convert to fraction form
    639,013,900,754.10/881,866,903,003.26 = 353,872,420,850.14/x
  3. Step 3: Cross multiply
    639,013,900,754.10x = 881,866,903,003.26 × 353,872,420,850.14
  4. Step 4: Simplify right side
    639,013,900,754.10x = 312,068,375,833,379,208,167,424
  5. Step 5: Solve for x
    x = 312,068,375,833,379,208,167,424/639,013,900,754.10
  6. Step 6: Final answer
    x = 488,359,291,503.84

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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.