Home / 587,077,359.09-878,699,824.47-431,589,975.24

Finding the Fourth Proportional to 587,077,359.09, 878,699,824.47 and 431,589,975.24

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Solution

The fourth proportional to 587,077,359.09, 878,699,824.47 and 431,589,975.24 is: 645,976,257.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,077,359.09 : 878,699,824.47 = 431,589,975.24 : x
  2. Step 2: Convert to fraction form
    587,077,359.09/878,699,824.47 = 431,589,975.24/x
  3. Step 3: Cross multiply
    587,077,359.09x = 878,699,824.47 × 431,589,975.24
  4. Step 4: Simplify right side
    587,077,359.09x = 379,238,035,486,399,680
  5. Step 5: Solve for x
    x = 379,238,035,486,399,680/587,077,359.09
  6. Step 6: Final answer
    x = 645,976,257.84

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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.