Home / 12,886,811.88-17,783,322.12-7,085,248.44

Finding the Fourth Proportional to 12,886,811.88, 17,783,322.12 and 7,085,248.44

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Solution

The fourth proportional to 12,886,811.88, 17,783,322.12 and 7,085,248.44 is: 9,777,379.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,811.88 : 17,783,322.12 = 7,085,248.44 : x
  2. Step 2: Convert to fraction form
    12,886,811.88/17,783,322.12 = 7,085,248.44/x
  3. Step 3: Cross multiply
    12,886,811.88x = 17,783,322.12 × 7,085,248.44
  4. Step 4: Simplify right side
    12,886,811.88x = 125,999,255,308,747.50
  5. Step 5: Solve for x
    x = 125,999,255,308,747.50/12,886,811.88
  6. Step 6: Final answer
    x = 9,777,379.89

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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.