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Finding the Fourth Proportional to 3,985,655,998.60, 5,978,483,997.90 and 3,695,418,353.80

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Solution

The fourth proportional to 3,985,655,998.60, 5,978,483,997.90 and 3,695,418,353.80 is: 5,543,127,530.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,655,998.60 : 5,978,483,997.90 = 3,695,418,353.80 : x
  2. Step 2: Convert to fraction form
    3,985,655,998.60/5,978,483,997.90 = 3,695,418,353.80/x
  3. Step 3: Cross multiply
    3,985,655,998.60x = 5,978,483,997.90 × 3,695,418,353.80
  4. Step 4: Simplify right side
    3,985,655,998.60x = 22,092,999,493,739,261,952
  5. Step 5: Solve for x
    x = 22,092,999,493,739,261,952/3,985,655,998.60
  6. Step 6: Final answer
    x = 5,543,127,530.70

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1.5x scale

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.