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Finding the Fourth Proportional to 15,395,978.64, 23,099,096.88 and 5,161,851.12

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Solution

The fourth proportional to 15,395,978.64, 23,099,096.88 and 5,161,851.12 is: 7,744,496.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,395,978.64 : 23,099,096.88 = 5,161,851.12 : x
  2. Step 2: Convert to fraction form
    15,395,978.64/23,099,096.88 = 5,161,851.12/x
  3. Step 3: Cross multiply
    15,395,978.64x = 23,099,096.88 × 5,161,851.12
  4. Step 4: Simplify right side
    15,395,978.64x = 119,234,099,101,016.50
  5. Step 5: Solve for x
    x = 119,234,099,101,016.50/15,395,978.64
  6. Step 6: Final answer
    x = 7,744,496.27

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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.