Home / 433,848,890.21-650,686,323.62-212,424,828.62

Finding the Fourth Proportional to 433,848,890.21, 650,686,323.62 and 212,424,828.62

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Solution

The fourth proportional to 433,848,890.21, 650,686,323.62 and 212,424,828.62 is: 318,594,639.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,848,890.21 : 650,686,323.62 = 212,424,828.62 : x
  2. Step 2: Convert to fraction form
    433,848,890.21/650,686,323.62 = 212,424,828.62/x
  3. Step 3: Cross multiply
    433,848,890.21x = 650,686,323.62 × 212,424,828.62
  4. Step 4: Simplify right side
    433,848,890.21x = 138,221,930,777,633,984
  5. Step 5: Solve for x
    x = 138,221,930,777,633,984/433,848,890.21
  6. Step 6: Final answer
    x = 318,594,639.51

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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.