Home / 12,496,690-17,240,503.08-7,847,740.72

Finding the Fourth Proportional to 12,496,690, 17,240,503.08 and 7,847,740.72

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Solution

The fourth proportional to 12,496,690, 17,240,503.08 and 7,847,740.72 is: 10,826,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,496,690 : 17,240,503.08 = 7,847,740.72 : x
  2. Step 2: Convert to fraction form
    12,496,690/17,240,503.08 = 7,847,740.72/x
  3. Step 3: Cross multiply
    12,496,690x = 17,240,503.08 × 7,847,740.72
  4. Step 4: Simplify right side
    12,496,690x = 135,298,998,054,201.41
  5. Step 5: Solve for x
    x = 135,298,998,054,201.41/12,496,690
  6. Step 6: Final answer
    x = 10,826,786.78

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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.