Home / 13,698,328.37-18,898,431.39-7,818,288.91

Finding the Fourth Proportional to 13,698,328.37, 18,898,431.39 and 7,818,288.91

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Solution

The fourth proportional to 13,698,328.37, 18,898,431.39 and 7,818,288.91 is: 10,786,235.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698,328.37 : 18,898,431.39 = 7,818,288.91 : x
  2. Step 2: Convert to fraction form
    13,698,328.37/18,898,431.39 = 7,818,288.91/x
  3. Step 3: Cross multiply
    13,698,328.37x = 18,898,431.39 × 7,818,288.91
  4. Step 4: Simplify right side
    13,698,328.37x = 147,753,396,552,832.91
  5. Step 5: Solve for x
    x = 147,753,396,552,832.91/13,698,328.37
  6. Step 6: Final answer
    x = 10,786,235.56

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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.