Home / 8,421,812.70-12,609,099.45-8,185,616.70

Finding the Fourth Proportional to 8,421,812.70, 12,609,099.45 and 8,185,616.70

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Solution

The fourth proportional to 8,421,812.70, 12,609,099.45 and 8,185,616.70 is: 12,255,467.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421,812.70 : 12,609,099.45 = 8,185,616.70 : x
  2. Step 2: Convert to fraction form
    8,421,812.70/12,609,099.45 = 8,185,616.70/x
  3. Step 3: Cross multiply
    8,421,812.70x = 12,609,099.45 × 8,185,616.70
  4. Step 4: Simplify right side
    8,421,812.70x = 103,213,255,029,880.81
  5. Step 5: Solve for x
    x = 103,213,255,029,880.81/8,421,812.70
  6. Step 6: Final answer
    x = 12,255,467.88

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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.