Home / 12,099,270.60-18,148,905.90-10,456,979.40

Finding the Fourth Proportional to 12,099,270.60, 18,148,905.90 and 10,456,979.40

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Solution

The fourth proportional to 12,099,270.60, 18,148,905.90 and 10,456,979.40 is: 15,685,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,099,270.60 : 18,148,905.90 = 10,456,979.40 : x
  2. Step 2: Convert to fraction form
    12,099,270.60/18,148,905.90 = 10,456,979.40/x
  3. Step 3: Cross multiply
    12,099,270.60x = 18,148,905.90 × 10,456,979.40
  4. Step 4: Simplify right side
    12,099,270.60x = 189,782,735,128,838.44
  5. Step 5: Solve for x
    x = 189,782,735,128,838.44/12,099,270.60
  6. Step 6: Final answer
    x = 15,685,469.10

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1.5x scale

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.