Home / 379,702,446,128.76-523,989,763,446.85-206,087,621,365.12

Finding the Fourth Proportional to 379,702,446,128.76, 523,989,763,446.85 and 206,087,621,365.12

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Solution

The fourth proportional to 379,702,446,128.76, 523,989,763,446.85 and 206,087,621,365.12 is: 284,401,127,960.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,702,446,128.76 : 523,989,763,446.85 = 206,087,621,365.12 : x
  2. Step 2: Convert to fraction form
    379,702,446,128.76/523,989,763,446.85 = 206,087,621,365.12/x
  3. Step 3: Cross multiply
    379,702,446,128.76x = 523,989,763,446.85 × 206,087,621,365.12
  4. Step 4: Simplify right side
    379,702,446,128.76x = 107,987,803,968,433,217,863,680
  5. Step 5: Solve for x
    x = 107,987,803,968,433,217,863,680/379,702,446,128.76
  6. Step 6: Final answer
    x = 284,401,127,960.64

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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.