Home / 379,376,162.72-523,537,048.32-212,112,391.04

Finding the Fourth Proportional to 379,376,162.72, 523,537,048.32 and 212,112,391.04

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Solution

The fourth proportional to 379,376,162.72, 523,537,048.32 and 212,112,391.04 is: 292,713,949.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,376,162.72 : 523,537,048.32 = 212,112,391.04 : x
  2. Step 2: Convert to fraction form
    379,376,162.72/523,537,048.32 = 212,112,391.04/x
  3. Step 3: Cross multiply
    379,376,162.72x = 523,537,048.32 × 212,112,391.04
  4. Step 4: Simplify right side
    379,376,162.72x = 111,048,695,117,179,216
  5. Step 5: Solve for x
    x = 111,048,695,117,179,216/379,376,162.72
  6. Step 6: Final answer
    x = 292,713,949.98

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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.