Home / 660,769,020.43-990,260,682.42-251,601,965.71

Finding the Fourth Proportional to 660,769,020.43, 990,260,682.42 and 251,601,965.71

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Solution

The fourth proportional to 660,769,020.43, 990,260,682.42 and 251,601,965.71 is: 377,062,977.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,769,020.43 : 990,260,682.42 = 251,601,965.71 : x
  2. Step 2: Convert to fraction form
    660,769,020.43/990,260,682.42 = 251,601,965.71/x
  3. Step 3: Cross multiply
    660,769,020.43x = 990,260,682.42 × 251,601,965.71
  4. Step 4: Simplify right side
    660,769,020.43x = 249,151,534,260,665,920
  5. Step 5: Solve for x
    x = 249,151,534,260,665,920/660,769,020.43
  6. Step 6: Final answer
    x = 377,062,977.47

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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.