Home / 108,522,745.20-162,784,117.80-74,085,368.40

Finding the Fourth Proportional to 108,522,745.20, 162,784,117.80 and 74,085,368.40

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Solution

The fourth proportional to 108,522,745.20, 162,784,117.80 and 74,085,368.40 is: 111,128,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,522,745.20 : 162,784,117.80 = 74,085,368.40 : x
  2. Step 2: Convert to fraction form
    108,522,745.20/162,784,117.80 = 74,085,368.40/x
  3. Step 3: Cross multiply
    108,522,745.20x = 162,784,117.80 × 74,085,368.40
  4. Step 4: Simplify right side
    108,522,745.20x = 12,059,921,336,882,000
  5. Step 5: Solve for x
    x = 12,059,921,336,882,000/108,522,745.20
  6. Step 6: Final answer
    x = 111,128,052.60

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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.