Home / 7,166,929.50-9,890,362.71-3,947,665.50

Finding the Fourth Proportional to 7,166,929.50, 9,890,362.71 and 3,947,665.50

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Solution

The fourth proportional to 7,166,929.50, 9,890,362.71 and 3,947,665.50 is: 5,447,778.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,166,929.50 : 9,890,362.71 = 3,947,665.50 : x
  2. Step 2: Convert to fraction form
    7,166,929.50/9,890,362.71 = 3,947,665.50/x
  3. Step 3: Cross multiply
    7,166,929.50x = 9,890,362.71 × 3,947,665.50
  4. Step 4: Simplify right side
    7,166,929.50x = 39,043,843,652,753.51
  5. Step 5: Solve for x
    x = 39,043,843,652,753.51/7,166,929.50
  6. Step 6: Final answer
    x = 5,447,778.39

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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.