Home / 12,871,811.70-19,307,717.55-6,804,198.90

Finding the Fourth Proportional to 12,871,811.70, 19,307,717.55 and 6,804,198.90

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Solution

The fourth proportional to 12,871,811.70, 19,307,717.55 and 6,804,198.90 is: 10,206,298.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871,811.70 : 19,307,717.55 = 6,804,198.90 : x
  2. Step 2: Convert to fraction form
    12,871,811.70/19,307,717.55 = 6,804,198.90/x
  3. Step 3: Cross multiply
    12,871,811.70x = 19,307,717.55 × 6,804,198.90
  4. Step 4: Simplify right side
    12,871,811.70x = 131,373,550,515,220.70
  5. Step 5: Solve for x
    x = 131,373,550,515,220.70/12,871,811.70
  6. Step 6: Final answer
    x = 10,206,298.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.