Home / 20,148,168.57-30,219,300.18-9,910,280.28

Finding the Fourth Proportional to 20,148,168.57, 30,219,300.18 and 9,910,280.28

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Solution

The fourth proportional to 20,148,168.57, 30,219,300.18 and 9,910,280.28 is: 14,863,968.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148,168.57 : 30,219,300.18 = 9,910,280.28 : x
  2. Step 2: Convert to fraction form
    20,148,168.57/30,219,300.18 = 9,910,280.28/x
  3. Step 3: Cross multiply
    20,148,168.57x = 30,219,300.18 × 9,910,280.28
  4. Step 4: Simplify right side
    20,148,168.57x = 299,481,734,649,254.44
  5. Step 5: Solve for x
    x = 299,481,734,649,254.44/20,148,168.57
  6. Step 6: Final answer
    x = 14,863,968.09

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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.