Home / 213,585,903.60-320,304,205.80-111,315,951.60

Finding the Fourth Proportional to 213,585,903.60, 320,304,205.80 and 111,315,951.60

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Solution

The fourth proportional to 213,585,903.60, 320,304,205.80 and 111,315,951.60 is: 166,935,021.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,585,903.60 : 320,304,205.80 = 111,315,951.60 : x
  2. Step 2: Convert to fraction form
    213,585,903.60/320,304,205.80 = 111,315,951.60/x
  3. Step 3: Cross multiply
    213,585,903.60x = 320,304,205.80 × 111,315,951.60
  4. Step 4: Simplify right side
    213,585,903.60x = 35,654,967,470,109,240
  5. Step 5: Solve for x
    x = 35,654,967,470,109,240/213,585,903.60
  6. Step 6: Final answer
    x = 166,935,021.78

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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.