Home / 18,696,090.87-28,047,772.14-7,180,715.73

Finding the Fourth Proportional to 18,696,090.87, 28,047,772.14 and 7,180,715.73

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Solution

The fourth proportional to 18,696,090.87, 28,047,772.14 and 7,180,715.73 is: 10,772,470.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696,090.87 : 28,047,772.14 = 7,180,715.73 : x
  2. Step 2: Convert to fraction form
    18,696,090.87/28,047,772.14 = 7,180,715.73/x
  3. Step 3: Cross multiply
    18,696,090.87x = 28,047,772.14 × 7,180,715.73
  4. Step 4: Simplify right side
    18,696,090.87x = 201,403,078,597,153.78
  5. Step 5: Solve for x
    x = 201,403,078,597,153.78/18,696,090.87
  6. Step 6: Final answer
    x = 10,772,470.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.