Home / 20,030,153.40-30,045,230.10-18,686,460.60

Finding the Fourth Proportional to 20,030,153.40, 30,045,230.10 and 18,686,460.60

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Solution

The fourth proportional to 20,030,153.40, 30,045,230.10 and 18,686,460.60 is: 28,029,690.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030,153.40 : 30,045,230.10 = 18,686,460.60 : x
  2. Step 2: Convert to fraction form
    20,030,153.40/30,045,230.10 = 18,686,460.60/x
  3. Step 3: Cross multiply
    20,030,153.40x = 30,045,230.10 × 18,686,460.60
  4. Step 4: Simplify right side
    20,030,153.40x = 561,439,008,481,584.12
  5. Step 5: Solve for x
    x = 561,439,008,481,584.12/20,030,153.40
  6. Step 6: Final answer
    x = 28,029,690.90

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Similar ratio
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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.