Home / 8,638,450-11,921,061.96-5,017,011.28

Finding the Fourth Proportional to 8,638,450, 11,921,061.96 and 5,017,011.28

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Solution

The fourth proportional to 8,638,450, 11,921,061.96 and 5,017,011.28 is: 6,923,476.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638,450 : 11,921,061.96 = 5,017,011.28 : x
  2. Step 2: Convert to fraction form
    8,638,450/11,921,061.96 = 5,017,011.28/x
  3. Step 3: Cross multiply
    8,638,450x = 11,921,061.96 × 5,017,011.28
  4. Step 4: Simplify right side
    8,638,450x = 59,808,102,322,898.91
  5. Step 5: Solve for x
    x = 59,808,102,322,898.91/8,638,450
  6. Step 6: Final answer
    x = 6,923,476.12

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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.