Home / 178,734,140.80-268,101,211.20-117,512,137.60

Finding the Fourth Proportional to 178,734,140.80, 268,101,211.20 and 117,512,137.60

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Solution

The fourth proportional to 178,734,140.80, 268,101,211.20 and 117,512,137.60 is: 176,268,206.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,734,140.80 : 268,101,211.20 = 117,512,137.60 : x
  2. Step 2: Convert to fraction form
    178,734,140.80/268,101,211.20 = 117,512,137.60/x
  3. Step 3: Cross multiply
    178,734,140.80x = 268,101,211.20 × 117,512,137.60
  4. Step 4: Simplify right side
    178,734,140.80x = 31,505,146,421,261,060
  5. Step 5: Solve for x
    x = 31,505,146,421,261,060/178,734,140.80
  6. Step 6: Final answer
    x = 176,268,206.40

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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.