Home / 639,013,749,745.60-881,866,694,610.88-353,872,269,841.62

Finding the Fourth Proportional to 639,013,749,745.60, 881,866,694,610.88 and 353,872,269,841.62

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Solution

The fourth proportional to 639,013,749,745.60, 881,866,694,610.88 and 353,872,269,841.62 is: 488,359,083,108.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,013,749,745.60 : 881,866,694,610.88 = 353,872,269,841.62 : x
  2. Step 2: Convert to fraction form
    639,013,749,745.60/881,866,694,610.88 = 353,872,269,841.62/x
  3. Step 3: Cross multiply
    639,013,749,745.60x = 881,866,694,610.88 × 353,872,269,841.62
  4. Step 4: Simplify right side
    639,013,749,745.60x = 312,068,168,919,678,799,839,232
  5. Step 5: Solve for x
    x = 312,068,168,919,678,799,839,232/639,013,749,745.60
  6. Step 6: Final answer
    x = 488,359,083,108.80

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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.