Home / 13,301,928.46-18,357,205.53-8,405,363.71

Finding the Fourth Proportional to 13,301,928.46, 18,357,205.53 and 8,405,363.71

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Solution

The fourth proportional to 13,301,928.46, 18,357,205.53 and 8,405,363.71 is: 11,599,745.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301,928.46 : 18,357,205.53 = 8,405,363.71 : x
  2. Step 2: Convert to fraction form
    13,301,928.46/18,357,205.53 = 8,405,363.71/x
  3. Step 3: Cross multiply
    13,301,928.46x = 18,357,205.53 × 8,405,363.71
  4. Step 4: Simplify right side
    13,301,928.46x = 154,298,989,178,873.34
  5. Step 5: Solve for x
    x = 154,298,989,178,873.34/13,301,928.46
  6. Step 6: Final answer
    x = 11,599,745.83

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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.