Home / 369,200,442.22-509,385,999.38-212,563,521.88

Finding the Fourth Proportional to 369,200,442.22, 509,385,999.38 and 212,563,521.88

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Solution

The fourth proportional to 369,200,442.22, 509,385,999.38 and 212,563,521.88 is: 293,273,977.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,200,442.22 : 509,385,999.38 = 212,563,521.88 : x
  2. Step 2: Convert to fraction form
    369,200,442.22/509,385,999.38 = 212,563,521.88/x
  3. Step 3: Cross multiply
    369,200,442.22x = 509,385,999.38 × 212,563,521.88
  4. Step 4: Simplify right side
    369,200,442.22x = 108,276,882,022,240,016
  5. Step 5: Solve for x
    x = 108,276,882,022,240,016/369,200,442.22
  6. Step 6: Final answer
    x = 293,273,977.06

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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.