Home / 3,985,848,011.40-5,978,772,017.10-2,126,229,664.20

Finding the Fourth Proportional to 3,985,848,011.40, 5,978,772,017.10 and 2,126,229,664.20

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Solution

The fourth proportional to 3,985,848,011.40, 5,978,772,017.10 and 2,126,229,664.20 is: 3,189,344,496.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,848,011.40 : 5,978,772,017.10 = 2,126,229,664.20 : x
  2. Step 2: Convert to fraction form
    3,985,848,011.40/5,978,772,017.10 = 2,126,229,664.20/x
  3. Step 3: Cross multiply
    3,985,848,011.40x = 5,978,772,017.10 × 2,126,229,664.20
  4. Step 4: Simplify right side
    3,985,848,011.40x = 12,712,242,418,246,891,520
  5. Step 5: Solve for x
    x = 12,712,242,418,246,891,520/3,985,848,011.40
  6. Step 6: Final answer
    x = 3,189,344,496.30

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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.