Home / 215,686,939.70-323,530,409.55-164,668,603.70

Finding the Fourth Proportional to 215,686,939.70, 323,530,409.55 and 164,668,603.70

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Solution

The fourth proportional to 215,686,939.70, 323,530,409.55 and 164,668,603.70 is: 247,002,905.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,686,939.70 : 323,530,409.55 = 164,668,603.70 : x
  2. Step 2: Convert to fraction form
    215,686,939.70/323,530,409.55 = 164,668,603.70/x
  3. Step 3: Cross multiply
    215,686,939.70x = 323,530,409.55 × 164,668,603.70
  4. Step 4: Simplify right side
    215,686,939.70x = 53,275,300,795,087,640
  5. Step 5: Solve for x
    x = 53,275,300,795,087,640/215,686,939.70
  6. Step 6: Final answer
    x = 247,002,905.55

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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.