Home / 20,552,406.81-28,362,343.41-11,133,219.57

Finding the Fourth Proportional to 20,552,406.81, 28,362,343.41 and 11,133,219.57

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Solution

The fourth proportional to 20,552,406.81, 28,362,343.41 and 11,133,219.57 is: 15,363,854.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552,406.81 : 28,362,343.41 = 11,133,219.57 : x
  2. Step 2: Convert to fraction form
    20,552,406.81/28,362,343.41 = 11,133,219.57/x
  3. Step 3: Cross multiply
    20,552,406.81x = 28,362,343.41 × 11,133,219.57
  4. Step 4: Simplify right side
    20,552,406.81x = 315,764,196,703,272.56
  5. Step 5: Solve for x
    x = 315,764,196,703,272.56/20,552,406.81
  6. Step 6: Final answer
    x = 15,363,854.93

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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.