Home / 281,333,197-421,961,487.36-74,054,248.84

Finding the Fourth Proportional to 281,333,197, 421,961,487.36 and 74,054,248.84

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Solution

The fourth proportional to 281,333,197, 421,961,487.36 and 74,054,248.84 is: 111,071,289.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,333,197 : 421,961,487.36 = 74,054,248.84 : x
  2. Step 2: Convert to fraction form
    281,333,197/421,961,487.36 = 74,054,248.84/x
  3. Step 3: Cross multiply
    281,333,197x = 421,961,487.36 × 74,054,248.84
  4. Step 4: Simplify right side
    281,333,197x = 31,248,040,985,853,956
  5. Step 5: Solve for x
    x = 31,248,040,985,853,956/281,333,197
  6. Step 6: Final answer
    x = 111,071,289.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.