Home / 19,152,087.90-28,728,131.85-7,800,683.10

Finding the Fourth Proportional to 19,152,087.90, 28,728,131.85 and 7,800,683.10

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Solution

The fourth proportional to 19,152,087.90, 28,728,131.85 and 7,800,683.10 is: 11,701,024.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152,087.90 : 28,728,131.85 = 7,800,683.10 : x
  2. Step 2: Convert to fraction form
    19,152,087.90/28,728,131.85 = 7,800,683.10/x
  3. Step 3: Cross multiply
    19,152,087.90x = 28,728,131.85 × 7,800,683.10
  4. Step 4: Simplify right side
    19,152,087.90x = 224,099,052,616,866.75
  5. Step 5: Solve for x
    x = 224,099,052,616,866.75/19,152,087.90
  6. Step 6: Final answer
    x = 11,701,024.65

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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.