Home / 18,683,875.20-28,025,812.80-10,180,819.20

Finding the Fourth Proportional to 18,683,875.20, 28,025,812.80 and 10,180,819.20

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Solution

The fourth proportional to 18,683,875.20, 28,025,812.80 and 10,180,819.20 is: 15,271,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,875.20 : 28,025,812.80 = 10,180,819.20 : x
  2. Step 2: Convert to fraction form
    18,683,875.20/28,025,812.80 = 10,180,819.20/x
  3. Step 3: Cross multiply
    18,683,875.20x = 28,025,812.80 × 10,180,819.20
  4. Step 4: Simplify right side
    18,683,875.20x = 285,325,733,049,845.75
  5. Step 5: Solve for x
    x = 285,325,733,049,845.75/18,683,875.20
  6. Step 6: Final answer
    x = 15,271,228.80

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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.