Home / 172,329,621.60-258,620,403.60-121,311,285.60

Finding the Fourth Proportional to 172,329,621.60, 258,620,403.60 and 121,311,285.60

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Solution

The fourth proportional to 172,329,621.60, 258,620,403.60 and 121,311,285.60 is: 182,055,605.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,329,621.60 : 258,620,403.60 = 121,311,285.60 : x
  2. Step 2: Convert to fraction form
    172,329,621.60/258,620,403.60 = 121,311,285.60/x
  3. Step 3: Cross multiply
    172,329,621.60x = 258,620,403.60 × 121,311,285.60
  4. Step 4: Simplify right side
    172,329,621.60x = 31,373,573,643,106,864
  5. Step 5: Solve for x
    x = 31,373,573,643,106,864/172,329,621.60
  6. Step 6: Final answer
    x = 182,055,605.72

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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.