Home / 217,320,861.60-325,997,038.80-130,873,125.60

Finding the Fourth Proportional to 217,320,861.60, 325,997,038.80 and 130,873,125.60

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Solution

The fourth proportional to 217,320,861.60, 325,997,038.80 and 130,873,125.60 is: 196,319,171.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,320,861.60 : 325,997,038.80 = 130,873,125.60 : x
  2. Step 2: Convert to fraction form
    217,320,861.60/325,997,038.80 = 130,873,125.60/x
  3. Step 3: Cross multiply
    217,320,861.60x = 325,997,038.80 × 130,873,125.60
  4. Step 4: Simplify right side
    217,320,861.60x = 42,664,251,404,100,472
  5. Step 5: Solve for x
    x = 42,664,251,404,100,472/217,320,861.60
  6. Step 6: Final answer
    x = 196,319,171.06

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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.