Home / 18,867,193.08-28,271,922.32-12,696,322.08

Finding the Fourth Proportional to 18,867,193.08, 28,271,922.32 and 12,696,322.08

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Solution

The fourth proportional to 18,867,193.08, 28,271,922.32 and 12,696,322.08 is: 19,025,057.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867,193.08 : 28,271,922.32 = 12,696,322.08 : x
  2. Step 2: Convert to fraction form
    18,867,193.08/28,271,922.32 = 12,696,322.08/x
  3. Step 3: Cross multiply
    18,867,193.08x = 28,271,922.32 × 12,696,322.08
  4. Step 4: Simplify right side
    18,867,193.08x = 358,949,431,595,460.81
  5. Step 5: Solve for x
    x = 358,949,431,595,460.81/18,867,193.08
  6. Step 6: Final answer
    x = 19,025,057.41

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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.