Home / 351,803,874.11-485,287,640.54-219,415,027.70

Finding the Fourth Proportional to 351,803,874.11, 485,287,640.54 and 219,415,027.70

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Solution

The fourth proportional to 351,803,874.11, 485,287,640.54 and 219,415,027.70 is: 302,666,937.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,803,874.11 : 485,287,640.54 = 219,415,027.70 : x
  2. Step 2: Convert to fraction form
    351,803,874.11/485,287,640.54 = 219,415,027.70/x
  3. Step 3: Cross multiply
    351,803,874.11x = 485,287,640.54 × 219,415,027.70
  4. Step 4: Simplify right side
    351,803,874.11x = 106,479,401,092,492,880
  5. Step 5: Solve for x
    x = 106,479,401,092,492,880/351,803,874.11
  6. Step 6: Final answer
    x = 302,666,937.26

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.