Home / 328,054,928.40-491,746,469.40-191,670,109.20

Finding the Fourth Proportional to 328,054,928.40, 491,746,469.40 and 191,670,109.20

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Solution

The fourth proportional to 328,054,928.40, 491,746,469.40 and 191,670,109.20 is: 287,308,896.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,054,928.40 : 491,746,469.40 = 191,670,109.20 : x
  2. Step 2: Convert to fraction form
    328,054,928.40/491,746,469.40 = 191,670,109.20/x
  3. Step 3: Cross multiply
    328,054,928.40x = 491,746,469.40 × 191,670,109.20
  4. Step 4: Simplify right side
    328,054,928.40x = 94,253,099,488,612,448
  5. Step 5: Solve for x
    x = 94,253,099,488,612,448/328,054,928.40
  6. Step 6: Final answer
    x = 287,308,896.56

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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.