Home / 120,860,639.90-166,782,467.67-68,649,513.02

Finding the Fourth Proportional to 120,860,639.90, 166,782,467.67 and 68,649,513.02

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Solution

The fourth proportional to 120,860,639.90, 166,782,467.67 and 68,649,513.02 is: 94,733,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,860,639.90 : 166,782,467.67 = 68,649,513.02 : x
  2. Step 2: Convert to fraction form
    120,860,639.90/166,782,467.67 = 68,649,513.02/x
  3. Step 3: Cross multiply
    120,860,639.90x = 166,782,467.67 × 68,649,513.02
  4. Step 4: Simplify right side
    120,860,639.90x = 11,449,535,185,819,392
  5. Step 5: Solve for x
    x = 11,449,535,185,819,392/120,860,639.90
  6. Step 6: Final answer
    x = 94,733,365.60

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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.