Home / 611,117,105.77-843,361,954.07-343,240,072.21

Finding the Fourth Proportional to 611,117,105.77, 843,361,954.07 and 343,240,072.21

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Solution

The fourth proportional to 611,117,105.77, 843,361,954.07 and 343,240,072.21 is: 473,682,728.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,117,105.77 : 843,361,954.07 = 343,240,072.21 : x
  2. Step 2: Convert to fraction form
    611,117,105.77/843,361,954.07 = 343,240,072.21/x
  3. Step 3: Cross multiply
    611,117,105.77x = 843,361,954.07 × 343,240,072.21
  4. Step 4: Simplify right side
    611,117,105.77x = 289,475,618,012,437,312
  5. Step 5: Solve for x
    x = 289,475,618,012,437,312/611,117,105.77
  6. Step 6: Final answer
    x = 473,682,728.37

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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.