Home / 81,452,114.40-122,178,171.60-72,523,905.60

Finding the Fourth Proportional to 81,452,114.40, 122,178,171.60 and 72,523,905.60

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Solution

The fourth proportional to 81,452,114.40, 122,178,171.60 and 72,523,905.60 is: 108,785,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,452,114.40 : 122,178,171.60 = 72,523,905.60 : x
  2. Step 2: Convert to fraction form
    81,452,114.40/122,178,171.60 = 72,523,905.60/x
  3. Step 3: Cross multiply
    81,452,114.40x = 122,178,171.60 × 72,523,905.60
  4. Step 4: Simplify right side
    81,452,114.40x = 8,860,838,183,499,000
  5. Step 5: Solve for x
    x = 8,860,838,183,499,000/81,452,114.40
  6. Step 6: Final answer
    x = 108,785,858.40

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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.