Home / 287,659,854.36-396,705,861.36-188,504,589.02

Finding the Fourth Proportional to 287,659,854.36, 396,705,861.36 and 188,504,589.02

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Solution

The fourth proportional to 287,659,854.36, 396,705,861.36 and 188,504,589.02 is: 259,962,849.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,659,854.36 : 396,705,861.36 = 188,504,589.02 : x
  2. Step 2: Convert to fraction form
    287,659,854.36/396,705,861.36 = 188,504,589.02/x
  3. Step 3: Cross multiply
    287,659,854.36x = 396,705,861.36 × 188,504,589.02
  4. Step 4: Simplify right side
    287,659,854.36x = 74,780,875,355,508,368
  5. Step 5: Solve for x
    x = 74,780,875,355,508,368/287,659,854.36
  6. Step 6: Final answer
    x = 259,962,849.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.