Home / 8,228,039.79-11,344,143.90-6,389,378.67

Finding the Fourth Proportional to 8,228,039.79, 11,344,143.90 and 6,389,378.67

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Solution

The fourth proportional to 8,228,039.79, 11,344,143.90 and 6,389,378.67 is: 8,809,149.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228,039.79 : 11,344,143.90 = 6,389,378.67 : x
  2. Step 2: Convert to fraction form
    8,228,039.79/11,344,143.90 = 6,389,378.67/x
  3. Step 3: Cross multiply
    8,228,039.79x = 11,344,143.90 × 6,389,378.67
  4. Step 4: Simplify right side
    8,228,039.79x = 72,482,031,064,070.61
  5. Step 5: Solve for x
    x = 72,482,031,064,070.61/8,228,039.79
  6. Step 6: Final answer
    x = 8,809,149.31

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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.