Home / 15,678,021.52-23,494,977.60-12,468,905.20

Finding the Fourth Proportional to 15,678,021.52, 23,494,977.60 and 12,468,905.20

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Solution

The fourth proportional to 15,678,021.52, 23,494,977.60 and 12,468,905.20 is: 18,685,817.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678,021.52 : 23,494,977.60 = 12,468,905.20 : x
  2. Step 2: Convert to fraction form
    15,678,021.52/23,494,977.60 = 12,468,905.20/x
  3. Step 3: Cross multiply
    15,678,021.52x = 23,494,977.60 × 12,468,905.20
  4. Step 4: Simplify right side
    15,678,021.52x = 292,956,648,370,523.50
  5. Step 5: Solve for x
    x = 292,956,648,370,523.50/15,678,021.52
  6. Step 6: Final answer
    x = 18,685,817.47

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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.