Home / 1,212,436,861.30-1,818,647,660.47-652,462,464.16

Finding the Fourth Proportional to 1,212,436,861.30, 1,818,647,660.47 and 652,462,464.16

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Solution

The fourth proportional to 1,212,436,861.30, 1,818,647,660.47 and 652,462,464.16 is: 978,689,589.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,436,861.30 : 1,818,647,660.47 = 652,462,464.16 : x
  2. Step 2: Convert to fraction form
    1,212,436,861.30/1,818,647,660.47 = 652,462,464.16/x
  3. Step 3: Cross multiply
    1,212,436,861.30x = 1,818,647,660.47 × 652,462,464.16
  4. Step 4: Simplify right side
    1,212,436,861.30x = 1,186,599,333,989,717,248
  5. Step 5: Solve for x
    x = 1,186,599,333,989,717,248/1,212,436,861.30
  6. Step 6: Final answer
    x = 978,689,589.43

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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.