Home / 18,689,043.20-28,028,035.20-7,322,950.40

Finding the Fourth Proportional to 18,689,043.20, 28,028,035.20 and 7,322,950.40

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Solution

The fourth proportional to 18,689,043.20, 28,028,035.20 and 7,322,950.40 is: 10,982,258.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,043.20 : 28,028,035.20 = 7,322,950.40 : x
  2. Step 2: Convert to fraction form
    18,689,043.20/28,028,035.20 = 7,322,950.40/x
  3. Step 3: Cross multiply
    18,689,043.20x = 28,028,035.20 × 7,322,950.40
  4. Step 4: Simplify right side
    18,689,043.20x = 205,247,911,579,054.09
  5. Step 5: Solve for x
    x = 205,247,911,579,054.09/18,689,043.20
  6. Step 6: Final answer
    x = 10,982,258.93

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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.