Home / 217,242,708.90-325,438,910.55-130,724,114.10

Finding the Fourth Proportional to 217,242,708.90, 325,438,910.55 and 130,724,114.10

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Solution

The fourth proportional to 217,242,708.90, 325,438,910.55 and 130,724,114.10 is: 195,830,338.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,242,708.90 : 325,438,910.55 = 130,724,114.10 : x
  2. Step 2: Convert to fraction form
    217,242,708.90/325,438,910.55 = 130,724,114.10/x
  3. Step 3: Cross multiply
    217,242,708.90x = 325,438,910.55 × 130,724,114.10
  4. Step 4: Simplify right side
    217,242,708.90x = 42,542,713,275,317,896
  5. Step 5: Solve for x
    x = 42,542,713,275,317,896/217,242,708.90
  6. Step 6: Final answer
    x = 195,830,338.75

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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.