Home / 281,232,078.30-421,848,117.45-252,605,123.10

Finding the Fourth Proportional to 281,232,078.30, 421,848,117.45 and 252,605,123.10

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Solution

The fourth proportional to 281,232,078.30, 421,848,117.45 and 252,605,123.10 is: 378,907,684.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,232,078.30 : 421,848,117.45 = 252,605,123.10 : x
  2. Step 2: Convert to fraction form
    281,232,078.30/421,848,117.45 = 252,605,123.10/x
  3. Step 3: Cross multiply
    281,232,078.30x = 421,848,117.45 × 252,605,123.10
  4. Step 4: Simplify right side
    281,232,078.30x = 106,560,995,637,960,496
  5. Step 5: Solve for x
    x = 106,560,995,637,960,496/281,232,078.30
  6. Step 6: Final answer
    x = 378,907,684.65

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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.