Home / 15,787,030.32-21,786,101.52-8,543,686.32

Finding the Fourth Proportional to 15,787,030.32, 21,786,101.52 and 8,543,686.32

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Solution

The fourth proportional to 15,787,030.32, 21,786,101.52 and 8,543,686.32 is: 11,790,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,787,030.32 : 21,786,101.52 = 8,543,686.32 : x
  2. Step 2: Convert to fraction form
    15,787,030.32/21,786,101.52 = 8,543,686.32/x
  3. Step 3: Cross multiply
    15,787,030.32x = 21,786,101.52 × 8,543,686.32
  4. Step 4: Simplify right side
    15,787,030.32x = 186,133,617,522,555.22
  5. Step 5: Solve for x
    x = 186,133,617,522,555.22/15,787,030.32
  6. Step 6: Final answer
    x = 11,790,286.95

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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.