Home / 521,183,739.20-719,072,282.40-301,086,858.56

Finding the Fourth Proportional to 521,183,739.20, 719,072,282.40 and 301,086,858.56

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Solution

The fourth proportional to 521,183,739.20, 719,072,282.40 and 301,086,858.56 is: 415,406,694.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,183,739.20 : 719,072,282.40 = 301,086,858.56 : x
  2. Step 2: Convert to fraction form
    521,183,739.20/719,072,282.40 = 301,086,858.56/x
  3. Step 3: Cross multiply
    521,183,739.20x = 719,072,282.40 × 301,086,858.56
  4. Step 4: Simplify right side
    521,183,739.20x = 216,503,214,585,385,184
  5. Step 5: Solve for x
    x = 216,503,214,585,385,184/521,183,739.20
  6. Step 6: Final answer
    x = 415,406,694.99

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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.