Home / 213,995,916.39-320,892,699.87-82,899,593.67

Finding the Fourth Proportional to 213,995,916.39, 320,892,699.87 and 82,899,593.67

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Solution

The fourth proportional to 213,995,916.39, 320,892,699.87 and 82,899,593.67 is: 124,310,196.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,995,916.39 : 320,892,699.87 = 82,899,593.67 : x
  2. Step 2: Convert to fraction form
    213,995,916.39/320,892,699.87 = 82,899,593.67/x
  3. Step 3: Cross multiply
    213,995,916.39x = 320,892,699.87 × 82,899,593.67
  4. Step 4: Simplify right side
    213,995,916.39x = 26,601,874,432,095,608
  5. Step 5: Solve for x
    x = 26,601,874,432,095,608/213,995,916.39
  6. Step 6: Final answer
    x = 124,310,196.57

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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.