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Finding the Fourth Proportional to 36,207,328.40, 54,373,978.20 and 19,201,216.40

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Solution

The fourth proportional to 36,207,328.40, 54,373,978.20 and 19,201,216.40 is: 28,835,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,207,328.40 : 54,373,978.20 = 19,201,216.40 : x
  2. Step 2: Convert to fraction form
    36,207,328.40/54,373,978.20 = 19,201,216.40/x
  3. Step 3: Cross multiply
    36,207,328.40x = 54,373,978.20 × 19,201,216.40
  4. Step 4: Simplify right side
    36,207,328.40x = 1,044,046,521,947,082.50
  5. Step 5: Solve for x
    x = 1,044,046,521,947,082.50/36,207,328.40
  6. Step 6: Final answer
    x = 28,835,226.68

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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.