Home / 216,650,209.78-298,952,066.61-121,285,940.52

Finding the Fourth Proportional to 216,650,209.78, 298,952,066.61 and 121,285,940.52

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Solution

The fourth proportional to 216,650,209.78, 298,952,066.61 and 121,285,940.52 is: 167,360,477.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,650,209.78 : 298,952,066.61 = 121,285,940.52 : x
  2. Step 2: Convert to fraction form
    216,650,209.78/298,952,066.61 = 121,285,940.52/x
  3. Step 3: Cross multiply
    216,650,209.78x = 298,952,066.61 × 121,285,940.52
  4. Step 4: Simplify right side
    216,650,209.78x = 36,258,682,569,191,536
  5. Step 5: Solve for x
    x = 36,258,682,569,191,536/216,650,209.78
  6. Step 6: Final answer
    x = 167,360,477.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.