Home / 9,889,878.42-13,648,135.20-5,479,738.92

Finding the Fourth Proportional to 9,889,878.42, 13,648,135.20 and 5,479,738.92

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Solution

The fourth proportional to 9,889,878.42, 13,648,135.20 and 5,479,738.92 is: 7,562,096.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,889,878.42 : 13,648,135.20 = 5,479,738.92 : x
  2. Step 2: Convert to fraction form
    9,889,878.42/13,648,135.20 = 5,479,738.92/x
  3. Step 3: Cross multiply
    9,889,878.42x = 13,648,135.20 × 5,479,738.92
  4. Step 4: Simplify right side
    9,889,878.42x = 74,788,217,640,861.98
  5. Step 5: Solve for x
    x = 74,788,217,640,861.98/9,889,878.42
  6. Step 6: Final answer
    x = 7,562,096.77

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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.