Home / 339,528,123.72-509,241,017.88-217,558,770.12

Finding the Fourth Proportional to 339,528,123.72, 509,241,017.88 and 217,558,770.12

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Solution

The fourth proportional to 339,528,123.72, 509,241,017.88 and 217,558,770.12 is: 326,305,368.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,528,123.72 : 509,241,017.88 = 217,558,770.12 : x
  2. Step 2: Convert to fraction form
    339,528,123.72/509,241,017.88 = 217,558,770.12/x
  3. Step 3: Cross multiply
    339,528,123.72x = 509,241,017.88 × 217,558,770.12
  4. Step 4: Simplify right side
    339,528,123.72x = 110,789,849,544,629,728
  5. Step 5: Solve for x
    x = 110,789,849,544,629,728/339,528,123.72
  6. Step 6: Final answer
    x = 326,305,368.55

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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.