Home / 8,991,871.75-12,409,078.26-4,917,490.75

Finding the Fourth Proportional to 8,991,871.75, 12,409,078.26 and 4,917,490.75

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Solution

The fourth proportional to 8,991,871.75, 12,409,078.26 and 4,917,490.75 is: 6,786,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991,871.75 : 12,409,078.26 = 4,917,490.75 : x
  2. Step 2: Convert to fraction form
    8,991,871.75/12,409,078.26 = 4,917,490.75/x
  3. Step 3: Cross multiply
    8,991,871.75x = 12,409,078.26 × 4,917,490.75
  4. Step 4: Simplify right side
    8,991,871.75x = 61,021,527,559,576.09
  5. Step 5: Solve for x
    x = 61,021,527,559,576.09/8,991,871.75
  6. Step 6: Final answer
    x = 6,786,298.70

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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.