Home / 7,208,285.17-9,947,459.89-3,900,579.42

Finding the Fourth Proportional to 7,208,285.17, 9,947,459.89 and 3,900,579.42

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Solution

The fourth proportional to 7,208,285.17, 9,947,459.89 and 3,900,579.42 is: 5,382,813.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208,285.17 : 9,947,459.89 = 3,900,579.42 : x
  2. Step 2: Convert to fraction form
    7,208,285.17/9,947,459.89 = 3,900,579.42/x
  3. Step 3: Cross multiply
    7,208,285.17x = 9,947,459.89 × 3,900,579.42
  4. Step 4: Simplify right side
    7,208,285.17x = 38,800,857,328,209.47
  5. Step 5: Solve for x
    x = 38,800,857,328,209.47/7,208,285.17
  6. Step 6: Final answer
    x = 5,382,813.86

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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.