Home / 509,732,874,438.85-703,431,435,579.83-281,362,159,521.45

Finding the Fourth Proportional to 509,732,874,438.85, 703,431,435,579.83 and 281,362,159,521.45

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Solution

The fourth proportional to 509,732,874,438.85, 703,431,435,579.83 and 281,362,159,521.45 is: 388,279,818,145.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,732,874,438.85 : 703,431,435,579.83 = 281,362,159,521.45 : x
  2. Step 2: Convert to fraction form
    509,732,874,438.85/703,431,435,579.83 = 281,362,159,521.45/x
  3. Step 3: Cross multiply
    509,732,874,438.85x = 703,431,435,579.83 × 281,362,159,521.45
  4. Step 4: Simplify right side
    509,732,874,438.85x = 197,918,987,790,014,690,099,200
  5. Step 5: Solve for x
    x = 197,918,987,790,014,690,099,200/509,732,874,438.85
  6. Step 6: Final answer
    x = 388,279,818,145.73

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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.