Home / 12,457,466.20-18,686,199.30-12,373,485.40

Finding the Fourth Proportional to 12,457,466.20, 18,686,199.30 and 12,373,485.40

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Solution

The fourth proportional to 12,457,466.20, 18,686,199.30 and 12,373,485.40 is: 18,560,228.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,466.20 : 18,686,199.30 = 12,373,485.40 : x
  2. Step 2: Convert to fraction form
    12,457,466.20/18,686,199.30 = 12,373,485.40/x
  3. Step 3: Cross multiply
    12,457,466.20x = 18,686,199.30 × 12,373,485.40
  4. Step 4: Simplify right side
    12,457,466.20x = 231,213,414,220,040.25
  5. Step 5: Solve for x
    x = 231,213,414,220,040.25/12,457,466.20
  6. Step 6: Final answer
    x = 18,560,228.10

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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.