Home / 120,299,519.96-166,008,892.20-65,294,195.48

Finding the Fourth Proportional to 120,299,519.96, 166,008,892.20 and 65,294,195.48

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Solution

The fourth proportional to 120,299,519.96, 166,008,892.20 and 65,294,195.48 is: 90,103,576.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,299,519.96 : 166,008,892.20 = 65,294,195.48 : x
  2. Step 2: Convert to fraction form
    120,299,519.96/166,008,892.20 = 65,294,195.48/x
  3. Step 3: Cross multiply
    120,299,519.96x = 166,008,892.20 × 65,294,195.48
  4. Step 4: Simplify right side
    120,299,519.96x = 10,839,417,058,725,046
  5. Step 5: Solve for x
    x = 10,839,417,058,725,046/120,299,519.96
  6. Step 6: Final answer
    x = 90,103,576.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.