Home / 421,555,672.70-581,734,333.95-233,392,352.75

Finding the Fourth Proportional to 421,555,672.70, 581,734,333.95 and 233,392,352.75

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Solution

The fourth proportional to 421,555,672.70, 581,734,333.95 and 233,392,352.75 is: 322,074,529.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,555,672.70 : 581,734,333.95 = 233,392,352.75 : x
  2. Step 2: Convert to fraction form
    421,555,672.70/581,734,333.95 = 233,392,352.75/x
  3. Step 3: Cross multiply
    421,555,672.70x = 581,734,333.95 × 233,392,352.75
  4. Step 4: Simplify right side
    421,555,672.70x = 135,772,344,876,044,704
  5. Step 5: Solve for x
    x = 135,772,344,876,044,704/421,555,672.70
  6. Step 6: Final answer
    x = 322,074,529.34

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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.