Home / 3,985,901,998.90-5,978,852,998.35-2,149,241,902.90

Finding the Fourth Proportional to 3,985,901,998.90, 5,978,852,998.35 and 2,149,241,902.90

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Solution

The fourth proportional to 3,985,901,998.90, 5,978,852,998.35 and 2,149,241,902.90 is: 3,223,862,854.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,901,998.90 : 5,978,852,998.35 = 2,149,241,902.90 : x
  2. Step 2: Convert to fraction form
    3,985,901,998.90/5,978,852,998.35 = 2,149,241,902.90/x
  3. Step 3: Cross multiply
    3,985,901,998.90x = 5,978,852,998.35 × 2,149,241,902.90
  4. Step 4: Simplify right side
    3,985,901,998.90x = 12,850,001,395,333,126,144
  5. Step 5: Solve for x
    x = 12,850,001,395,333,126,144/3,985,901,998.90
  6. Step 6: Final answer
    x = 3,223,862,854.35

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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.