Home / 20,112,090.90-30,168,136.35-18,677,200.20

Finding the Fourth Proportional to 20,112,090.90, 30,168,136.35 and 18,677,200.20

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Solution

The fourth proportional to 20,112,090.90, 30,168,136.35 and 18,677,200.20 is: 28,015,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112,090.90 : 30,168,136.35 = 18,677,200.20 : x
  2. Step 2: Convert to fraction form
    20,112,090.90/30,168,136.35 = 18,677,200.20/x
  3. Step 3: Cross multiply
    20,112,090.90x = 30,168,136.35 × 18,677,200.20
  4. Step 4: Simplify right side
    20,112,090.90x = 563,456,322,269,847.25
  5. Step 5: Solve for x
    x = 563,456,322,269,847.25/20,112,090.90
  6. Step 6: Final answer
    x = 28,015,800.30

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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.