Home / 13,645,231.87-18,823,622.05-8,134,723.84

Finding the Fourth Proportional to 13,645,231.87, 18,823,622.05 and 8,134,723.84

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Solution

The fourth proportional to 13,645,231.87, 18,823,622.05 and 8,134,723.84 is: 11,221,866.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,645,231.87 : 18,823,622.05 = 8,134,723.84 : x
  2. Step 2: Convert to fraction form
    13,645,231.87/18,823,622.05 = 8,134,723.84/x
  3. Step 3: Cross multiply
    13,645,231.87x = 18,823,622.05 × 8,134,723.84
  4. Step 4: Simplify right side
    13,645,231.87x = 153,124,966,997,930.50
  5. Step 5: Solve for x
    x = 153,124,966,997,930.50/13,645,231.87
  6. Step 6: Final answer
    x = 11,221,866.25

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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.