Home / 120,660,194-166,509,668.04-65,655,102.80

Finding the Fourth Proportional to 120,660,194, 166,509,668.04 and 65,655,102.80

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Solution

The fourth proportional to 120,660,194, 166,509,668.04 and 65,655,102.80 is: 90,603,280.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,660,194 : 166,509,668.04 = 65,655,102.80 : x
  2. Step 2: Convert to fraction form
    120,660,194/166,509,668.04 = 65,655,102.80/x
  3. Step 3: Cross multiply
    120,660,194x = 166,509,668.04 × 65,655,102.80
  4. Step 4: Simplify right side
    120,660,194x = 10,932,209,372,360,074
  5. Step 5: Solve for x
    x = 10,932,209,372,360,074/120,660,194
  6. Step 6: Final answer
    x = 90,603,280.25

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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.