Home / 126,028,987.40-189,185,198.70-97,402,032.20

Finding the Fourth Proportional to 126,028,987.40, 189,185,198.70 and 97,402,032.20

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Solution

The fourth proportional to 126,028,987.40, 189,185,198.70 and 97,402,032.20 is: 146,212,575.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,028,987.40 : 189,185,198.70 = 97,402,032.20 : x
  2. Step 2: Convert to fraction form
    126,028,987.40/189,185,198.70 = 97,402,032.20/x
  3. Step 3: Cross multiply
    126,028,987.40x = 189,185,198.70 × 97,402,032.20
  4. Step 4: Simplify right side
    126,028,987.40x = 18,427,022,815,540,796
  5. Step 5: Solve for x
    x = 18,427,022,815,540,796/126,028,987.40
  6. Step 6: Final answer
    x = 146,212,575.34

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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.