Home / 209,555,217.09-289,173,169.58-115,464,098.60

Finding the Fourth Proportional to 209,555,217.09, 289,173,169.58 and 115,464,098.60

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Solution

The fourth proportional to 209,555,217.09, 289,173,169.58 and 115,464,098.60 is: 159,333,276.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,555,217.09 : 289,173,169.58 = 115,464,098.60 : x
  2. Step 2: Convert to fraction form
    209,555,217.09/289,173,169.58 = 115,464,098.60/x
  3. Step 3: Cross multiply
    209,555,217.09x = 289,173,169.58 × 115,464,098.60
  4. Step 4: Simplify right side
    209,555,217.09x = 33,389,119,362,836,452
  5. Step 5: Solve for x
    x = 33,389,119,362,836,452/209,555,217.09
  6. Step 6: Final answer
    x = 159,333,276.58

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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.