Home / 208,683,458.46-313,085,771.64-84,121,804.46

Finding the Fourth Proportional to 208,683,458.46, 313,085,771.64 and 84,121,804.46

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Solution

The fourth proportional to 208,683,458.46, 313,085,771.64 and 84,121,804.46 is: 126,207,128.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,683,458.46 : 313,085,771.64 = 84,121,804.46 : x
  2. Step 2: Convert to fraction form
    208,683,458.46/313,085,771.64 = 84,121,804.46/x
  3. Step 3: Cross multiply
    208,683,458.46x = 313,085,771.64 × 84,121,804.46
  4. Step 4: Simplify right side
    208,683,458.46x = 26,337,340,061,891,008
  5. Step 5: Solve for x
    x = 26,337,340,061,891,008/208,683,458.46
  6. Step 6: Final answer
    x = 126,207,128.52

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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.