Home / 18,997,660.50-28,496,490.75-8,360,092.50

Finding the Fourth Proportional to 18,997,660.50, 28,496,490.75 and 8,360,092.50

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Solution

The fourth proportional to 18,997,660.50, 28,496,490.75 and 8,360,092.50 is: 12,540,138.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997,660.50 : 28,496,490.75 = 8,360,092.50 : x
  2. Step 2: Convert to fraction form
    18,997,660.50/28,496,490.75 = 8,360,092.50/x
  3. Step 3: Cross multiply
    18,997,660.50x = 28,496,490.75 × 8,360,092.50
  4. Step 4: Simplify right side
    18,997,660.50x = 238,233,298,595,394.38
  5. Step 5: Solve for x
    x = 238,233,298,595,394.38/18,997,660.50
  6. Step 6: Final answer
    x = 12,540,138.75

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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.