Home / 74,860,120.80-112,290,181.20-66,073,629.60

Finding the Fourth Proportional to 74,860,120.80, 112,290,181.20 and 66,073,629.60

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Solution

The fourth proportional to 74,860,120.80, 112,290,181.20 and 66,073,629.60 is: 99,110,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,860,120.80 : 112,290,181.20 = 66,073,629.60 : x
  2. Step 2: Convert to fraction form
    74,860,120.80/112,290,181.20 = 66,073,629.60/x
  3. Step 3: Cross multiply
    74,860,120.80x = 112,290,181.20 × 66,073,629.60
  4. Step 4: Simplify right side
    74,860,120.80x = 7,419,419,840,325,684
  5. Step 5: Solve for x
    x = 7,419,419,840,325,684/74,860,120.80
  6. Step 6: Final answer
    x = 99,110,444.40

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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.