Home / 15,787,928.48-21,787,405.20-8,544,582.56

Finding the Fourth Proportional to 15,787,928.48, 21,787,405.20 and 8,544,582.56

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Solution

The fourth proportional to 15,787,928.48, 21,787,405.20 and 8,544,582.56 is: 11,791,558.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,787,928.48 : 21,787,405.20 = 8,544,582.56 : x
  2. Step 2: Convert to fraction form
    15,787,928.48/21,787,405.20 = 8,544,582.56/x
  3. Step 3: Cross multiply
    15,787,928.48x = 21,787,405.20 × 8,544,582.56
  4. Step 4: Simplify right side
    15,787,928.48x = 186,164,282,499,573.31
  5. Step 5: Solve for x
    x = 186,164,282,499,573.31/15,787,928.48
  6. Step 6: Final answer
    x = 11,791,558.51

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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.