Home / 23,189,343.40-34,784,015.10-20,638,426.60

Finding the Fourth Proportional to 23,189,343.40, 34,784,015.10 and 20,638,426.60

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Solution

The fourth proportional to 23,189,343.40, 34,784,015.10 and 20,638,426.60 is: 30,957,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,189,343.40 : 34,784,015.10 = 20,638,426.60 : x
  2. Step 2: Convert to fraction form
    23,189,343.40/34,784,015.10 = 20,638,426.60/x
  3. Step 3: Cross multiply
    23,189,343.40x = 34,784,015.10 × 20,638,426.60
  4. Step 4: Simplify right side
    23,189,343.40x = 717,887,342,494,641.75
  5. Step 5: Solve for x
    x = 717,887,342,494,641.75/23,189,343.40
  6. Step 6: Final answer
    x = 30,957,639.90

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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.