Home / 168,015,165.60-251,739,313.20-81,567,429.60

Finding the Fourth Proportional to 168,015,165.60, 251,739,313.20 and 81,567,429.60

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Solution

The fourth proportional to 168,015,165.60, 251,739,313.20 and 81,567,429.60 is: 122,213,543.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,015,165.60 : 251,739,313.20 = 81,567,429.60 : x
  2. Step 2: Convert to fraction form
    168,015,165.60/251,739,313.20 = 81,567,429.60/x
  3. Step 3: Cross multiply
    168,015,165.60x = 251,739,313.20 × 81,567,429.60
  4. Step 4: Simplify right side
    168,015,165.60x = 20,533,728,706,993,348
  5. Step 5: Solve for x
    x = 20,533,728,706,993,348/168,015,165.60
  6. Step 6: Final answer
    x = 122,213,543.25

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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.