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Finding the Fourth Proportional to 18,683,490.05, 28,025,235.08 and 18,683,490.05

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Solution

The fourth proportional to 18,683,490.05, 28,025,235.08 and 18,683,490.05 is: 28,025,235.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,490.05 : 28,025,235.08 = 18,683,490.05 : x
  2. Step 2: Convert to fraction form
    18,683,490.05/28,025,235.08 = 18,683,490.05/x
  3. Step 3: Cross multiply
    18,683,490.05x = 28,025,235.08 × 18,683,490.05
  4. Step 4: Simplify right side
    18,683,490.05x = 523,609,200,672,673.50
  5. Step 5: Solve for x
    x = 523,609,200,672,673.50/18,683,490.05
  6. Step 6: Final answer
    x = 28,025,235.08

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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.