Home / 12,783,379.60-19,175,069.40-9,424,147.60

Finding the Fourth Proportional to 12,783,379.60, 19,175,069.40 and 9,424,147.60

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Solution

The fourth proportional to 12,783,379.60, 19,175,069.40 and 9,424,147.60 is: 14,136,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,783,379.60 : 19,175,069.40 = 9,424,147.60 : x
  2. Step 2: Convert to fraction form
    12,783,379.60/19,175,069.40 = 9,424,147.60/x
  3. Step 3: Cross multiply
    12,783,379.60x = 19,175,069.40 × 9,424,147.60
  4. Step 4: Simplify right side
    12,783,379.60x = 180,708,684,265,843.41
  5. Step 5: Solve for x
    x = 180,708,684,265,843.41/12,783,379.60
  6. Step 6: Final answer
    x = 14,136,221.40

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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.