Home / 869,846,148.33-1,304,891,765.31-279,438,406.35

Finding the Fourth Proportional to 869,846,148.33, 1,304,891,765.31 and 279,438,406.35

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Solution

The fourth proportional to 869,846,148.33, 1,304,891,765.31 and 279,438,406.35 is: 419,196,976.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,846,148.33 : 1,304,891,765.31 = 279,438,406.35 : x
  2. Step 2: Convert to fraction form
    869,846,148.33/1,304,891,765.31 = 279,438,406.35/x
  3. Step 3: Cross multiply
    869,846,148.33x = 1,304,891,765.31 × 279,438,406.35
  4. Step 4: Simplify right side
    869,846,148.33x = 364,636,875,357,464,640
  5. Step 5: Solve for x
    x = 364,636,875,357,464,640/869,846,148.33
  6. Step 6: Final answer
    x = 419,196,976.45

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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.