Home / 672,850,759.68-1,009,269,411.12-212,789,007.36

Finding the Fourth Proportional to 672,850,759.68, 1,009,269,411.12 and 212,789,007.36

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Solution

The fourth proportional to 672,850,759.68, 1,009,269,411.12 and 212,789,007.36 is: 319,181,383.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,850,759.68 : 1,009,269,411.12 = 212,789,007.36 : x
  2. Step 2: Convert to fraction form
    672,850,759.68/1,009,269,411.12 = 212,789,007.36/x
  3. Step 3: Cross multiply
    672,850,759.68x = 1,009,269,411.12 × 212,789,007.36
  4. Step 4: Simplify right side
    672,850,759.68x = 214,761,436,151,036,576
  5. Step 5: Solve for x
    x = 214,761,436,151,036,576/672,850,759.68
  6. Step 6: Final answer
    x = 319,181,383.18

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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.