Home / 120,908,039.36-166,854,752.20-65,903,777.60

Finding the Fourth Proportional to 120,908,039.36, 166,854,752.20 and 65,903,777.60

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Solution

The fourth proportional to 120,908,039.36, 166,854,752.20 and 65,903,777.60 is: 90,948,116.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,908,039.36 : 166,854,752.20 = 65,903,777.60 : x
  2. Step 2: Convert to fraction form
    120,908,039.36/166,854,752.20 = 65,903,777.60/x
  3. Step 3: Cross multiply
    120,908,039.36x = 166,854,752.20 × 65,903,777.60
  4. Step 4: Simplify right side
    120,908,039.36x = 10,996,358,480,491,910
  5. Step 5: Solve for x
    x = 10,996,358,480,491,910/120,908,039.36
  6. Step 6: Final answer
    x = 90,948,116.76

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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.