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Finding the Fourth Proportional to 169,004,620.20, 253,506,930.30 and 53,992,914.60

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Solution

The fourth proportional to 169,004,620.20, 253,506,930.30 and 53,992,914.60 is: 80,989,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,004,620.20 : 253,506,930.30 = 53,992,914.60 : x
  2. Step 2: Convert to fraction form
    169,004,620.20/253,506,930.30 = 53,992,914.60/x
  3. Step 3: Cross multiply
    169,004,620.20x = 253,506,930.30 × 53,992,914.60
  4. Step 4: Simplify right side
    169,004,620.20x = 13,687,578,038,196,054
  5. Step 5: Solve for x
    x = 13,687,578,038,196,054/169,004,620.20
  6. Step 6: Final answer
    x = 80,989,371.90

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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.