Home / 319,364,792.70-479,047,189.05-217,328,120.70

Finding the Fourth Proportional to 319,364,792.70, 479,047,189.05 and 217,328,120.70

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Solution

The fourth proportional to 319,364,792.70, 479,047,189.05 and 217,328,120.70 is: 325,992,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,364,792.70 : 479,047,189.05 = 217,328,120.70 : x
  2. Step 2: Convert to fraction form
    319,364,792.70/479,047,189.05 = 217,328,120.70/x
  3. Step 3: Cross multiply
    319,364,792.70x = 479,047,189.05 × 217,328,120.70
  4. Step 4: Simplify right side
    319,364,792.70x = 104,110,425,322,854,112
  5. Step 5: Solve for x
    x = 104,110,425,322,854,112/319,364,792.70
  6. Step 6: Final answer
    x = 325,992,181.05

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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.