Home / 421,555,672.20-581,734,333.26-233,392,352.25

Finding the Fourth Proportional to 421,555,672.20, 581,734,333.26 and 233,392,352.25

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Solution

The fourth proportional to 421,555,672.20, 581,734,333.26 and 233,392,352.25 is: 322,074,528.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,555,672.20 : 581,734,333.26 = 233,392,352.25 : x
  2. Step 2: Convert to fraction form
    421,555,672.20/581,734,333.26 = 233,392,352.25/x
  3. Step 3: Cross multiply
    421,555,672.20x = 581,734,333.26 × 233,392,352.25
  4. Step 4: Simplify right side
    421,555,672.20x = 135,772,344,424,136,816
  5. Step 5: Solve for x
    x = 135,772,344,424,136,816/421,555,672.20
  6. Step 6: Final answer
    x = 322,074,528.65

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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.