Home / 208,205,205.60-286,964,550.72-138,465,974.64

Finding the Fourth Proportional to 208,205,205.60, 286,964,550.72 and 138,465,974.64

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Solution

The fourth proportional to 208,205,205.60, 286,964,550.72 and 138,465,974.64 is: 190,844,537.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,205,205.60 : 286,964,550.72 = 138,465,974.64 : x
  2. Step 2: Convert to fraction form
    208,205,205.60/286,964,550.72 = 138,465,974.64/x
  3. Step 3: Cross multiply
    208,205,205.60x = 286,964,550.72 × 138,465,974.64
  4. Step 4: Simplify right side
    208,205,205.60x = 39,734,826,202,574,512
  5. Step 5: Solve for x
    x = 39,734,826,202,574,512/208,205,205.60
  6. Step 6: Final answer
    x = 190,844,537.67

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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.