Home / 126,188,898.20-189,283,347.30-80,839,266.20

Finding the Fourth Proportional to 126,188,898.20, 189,283,347.30 and 80,839,266.20

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Solution

The fourth proportional to 126,188,898.20, 189,283,347.30 and 80,839,266.20 is: 121,258,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,188,898.20 : 189,283,347.30 = 80,839,266.20 : x
  2. Step 2: Convert to fraction form
    126,188,898.20/189,283,347.30 = 80,839,266.20/x
  3. Step 3: Cross multiply
    126,188,898.20x = 189,283,347.30 × 80,839,266.20
  4. Step 4: Simplify right side
    126,188,898.20x = 15,301,526,899,611,752
  5. Step 5: Solve for x
    x = 15,301,526,899,611,752/126,188,898.20
  6. Step 6: Final answer
    x = 121,258,899.30

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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.