Home / 678,804,564.40-1,017,790,141.52-263,796,814.64

Finding the Fourth Proportional to 678,804,564.40, 1,017,790,141.52 and 263,796,814.64

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Solution

The fourth proportional to 678,804,564.40, 1,017,790,141.52 and 263,796,814.64 is: 395,533,282.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,804,564.40 : 1,017,790,141.52 = 263,796,814.64 : x
  2. Step 2: Convert to fraction form
    678,804,564.40/1,017,790,141.52 = 263,796,814.64/x
  3. Step 3: Cross multiply
    678,804,564.40x = 1,017,790,141.52 × 263,796,814.64
  4. Step 4: Simplify right side
    678,804,564.40x = 268,489,797,304,970,784
  5. Step 5: Solve for x
    x = 268,489,797,304,970,784/678,804,564.40
  6. Step 6: Final answer
    x = 395,533,282.16

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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.