Home / 209,163,350.52-313,783,332.39-86,274,630.54

Finding the Fourth Proportional to 209,163,350.52, 313,783,332.39 and 86,274,630.54

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Solution

The fourth proportional to 209,163,350.52, 313,783,332.39 and 86,274,630.54 is: 129,427,746.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,163,350.52 : 313,783,332.39 = 86,274,630.54 : x
  2. Step 2: Convert to fraction form
    209,163,350.52/313,783,332.39 = 86,274,630.54/x
  3. Step 3: Cross multiply
    209,163,350.52x = 313,783,332.39 × 86,274,630.54
  4. Step 4: Simplify right side
    209,163,350.52x = 27,071,541,071,557,268
  5. Step 5: Solve for x
    x = 27,071,541,071,557,268/209,163,350.52
  6. Step 6: Final answer
    x = 129,427,746.32

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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.