Home / 200,218,698.10-300,328,047.15-70,972,246.90

Finding the Fourth Proportional to 200,218,698.10, 300,328,047.15 and 70,972,246.90

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Solution

The fourth proportional to 200,218,698.10, 300,328,047.15 and 70,972,246.90 is: 106,458,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,218,698.10 : 300,328,047.15 = 70,972,246.90 : x
  2. Step 2: Convert to fraction form
    200,218,698.10/300,328,047.15 = 70,972,246.90/x
  3. Step 3: Cross multiply
    200,218,698.10x = 300,328,047.15 × 70,972,246.90
  4. Step 4: Simplify right side
    200,218,698.10x = 21,314,956,313,324,640
  5. Step 5: Solve for x
    x = 21,314,956,313,324,640/200,218,698.10
  6. Step 6: Final answer
    x = 106,458,370.35

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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.