Home / 12,579,626.40-18,869,439.60-12,369,674.40

Finding the Fourth Proportional to 12,579,626.40, 18,869,439.60 and 12,369,674.40

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Solution

The fourth proportional to 12,579,626.40, 18,869,439.60 and 12,369,674.40 is: 18,554,511.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579,626.40 : 18,869,439.60 = 12,369,674.40 : x
  2. Step 2: Convert to fraction form
    12,579,626.40/18,869,439.60 = 12,369,674.40/x
  3. Step 3: Cross multiply
    12,579,626.40x = 18,869,439.60 × 12,369,674.40
  4. Step 4: Simplify right side
    12,579,626.40x = 233,408,823,962,466.25
  5. Step 5: Solve for x
    x = 233,408,823,962,466.25/12,579,626.40
  6. Step 6: Final answer
    x = 18,554,511.60

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Double scale
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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.