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Finding the Fourth Proportional to 18,809,940.30, 28,214,910.45 and 9,244,002.30

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Solution

The fourth proportional to 18,809,940.30, 28,214,910.45 and 9,244,002.30 is: 13,866,003.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809,940.30 : 28,214,910.45 = 9,244,002.30 : x
  2. Step 2: Convert to fraction form
    18,809,940.30/28,214,910.45 = 9,244,002.30/x
  3. Step 3: Cross multiply
    18,809,940.30x = 28,214,910.45 × 9,244,002.30
  4. Step 4: Simplify right side
    18,809,940.30x = 260,818,697,094,094.06
  5. Step 5: Solve for x
    x = 260,818,697,094,094.06/18,809,940.30
  6. Step 6: Final answer
    x = 13,866,003.45

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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.