Home / 13,700,889.23-18,892,078.75-8,731,462.27

Finding the Fourth Proportional to 13,700,889.23, 18,892,078.75 and 8,731,462.27

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Solution

The fourth proportional to 13,700,889.23, 18,892,078.75 and 8,731,462.27 is: 12,039,763.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700,889.23 : 18,892,078.75 = 8,731,462.27 : x
  2. Step 2: Convert to fraction form
    13,700,889.23/18,892,078.75 = 8,731,462.27/x
  3. Step 3: Cross multiply
    13,700,889.23x = 18,892,078.75 × 8,731,462.27
  4. Step 4: Simplify right side
    13,700,889.23x = 164,955,472,807,493.75
  5. Step 5: Solve for x
    x = 164,955,472,807,493.75/13,700,889.23
  6. Step 6: Final answer
    x = 12,039,763.99

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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.