Home / 12,310,747.53-16,980,020.73-8,640,483.12

Finding the Fourth Proportional to 12,310,747.53, 16,980,020.73 and 8,640,483.12

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Solution

The fourth proportional to 12,310,747.53, 16,980,020.73 and 8,640,483.12 is: 11,917,682.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310,747.53 : 16,980,020.73 = 8,640,483.12 : x
  2. Step 2: Convert to fraction form
    12,310,747.53/16,980,020.73 = 8,640,483.12/x
  3. Step 3: Cross multiply
    12,310,747.53x = 16,980,020.73 × 8,640,483.12
  4. Step 4: Simplify right side
    12,310,747.53x = 146,715,582,494,815.06
  5. Step 5: Solve for x
    x = 146,715,582,494,815.06/12,310,747.53
  6. Step 6: Final answer
    x = 11,917,682.67

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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.