Home / 7,217,011.84-9,959,393.20-3,909,243.59

Finding the Fourth Proportional to 7,217,011.84, 9,959,393.20 and 3,909,243.59

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Solution

The fourth proportional to 7,217,011.84, 9,959,393.20 and 3,909,243.59 is: 5,394,711.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217,011.84 : 9,959,393.20 = 3,909,243.59 : x
  2. Step 2: Convert to fraction form
    7,217,011.84/9,959,393.20 = 3,909,243.59/x
  3. Step 3: Cross multiply
    7,217,011.84x = 9,959,393.20 × 3,909,243.59
  4. Step 4: Simplify right side
    7,217,011.84x = 38,933,694,029,513.12
  5. Step 5: Solve for x
    x = 38,933,694,029,513.12/7,217,011.84
  6. Step 6: Final answer
    x = 5,394,711.12

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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.