Home / 111,780,139.20-167,334,285.60-66,318,532.80

Finding the Fourth Proportional to 111,780,139.20, 167,334,285.60 and 66,318,532.80

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Solution

The fourth proportional to 111,780,139.20, 167,334,285.60 and 66,318,532.80 is: 99,278,497.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,780,139.20 : 167,334,285.60 = 66,318,532.80 : x
  2. Step 2: Convert to fraction form
    111,780,139.20/167,334,285.60 = 66,318,532.80/x
  3. Step 3: Cross multiply
    111,780,139.20x = 167,334,285.60 × 66,318,532.80
  4. Step 4: Simplify right side
    111,780,139.20x = 11,097,364,308,128,166
  5. Step 5: Solve for x
    x = 11,097,364,308,128,166/111,780,139.20
  6. Step 6: Final answer
    x = 99,278,497.84

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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.