Home / 371,098,625.89-512,205,295.08-212,420,732.23

Finding the Fourth Proportional to 371,098,625.89, 512,205,295.08 and 212,420,732.23

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Solution

The fourth proportional to 371,098,625.89, 512,205,295.08 and 212,420,732.23 is: 293,191,664.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,098,625.89 : 512,205,295.08 = 212,420,732.23 : x
  2. Step 2: Convert to fraction form
    371,098,625.89/512,205,295.08 = 212,420,732.23/x
  3. Step 3: Cross multiply
    371,098,625.89x = 512,205,295.08 × 212,420,732.23
  4. Step 4: Simplify right side
    371,098,625.89x = 108,803,023,832,976,800
  5. Step 5: Solve for x
    x = 108,803,023,832,976,800/371,098,625.89
  6. Step 6: Final answer
    x = 293,191,664.54

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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.