Home / 353,428,618.47-529,965,559.25-205,923,847.40

Finding the Fourth Proportional to 353,428,618.47, 529,965,559.25 and 205,923,847.40

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Solution

The fourth proportional to 353,428,618.47, 529,965,559.25 and 205,923,847.40 is: 308,782,428.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,428,618.47 : 529,965,559.25 = 205,923,847.40 : x
  2. Step 2: Convert to fraction form
    353,428,618.47/529,965,559.25 = 205,923,847.40/x
  3. Step 3: Cross multiply
    353,428,618.47x = 529,965,559.25 × 205,923,847.40
  4. Step 4: Simplify right side
    353,428,618.47x = 109,132,546,950,252,656
  5. Step 5: Solve for x
    x = 109,132,546,950,252,656/353,428,618.47
  6. Step 6: Final answer
    x = 308,782,428.04

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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.