Home / 208,435,446,751.05-311,249,562,588.32-170,222,474,981.52

Finding the Fourth Proportional to 208,435,446,751.05, 311,249,562,588.32 and 170,222,474,981.52

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Solution

The fourth proportional to 208,435,446,751.05, 311,249,562,588.32 and 170,222,474,981.52 is: 254,187,431,679.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,435,446,751.05 : 311,249,562,588.32 = 170,222,474,981.52 : x
  2. Step 2: Convert to fraction form
    208,435,446,751.05/311,249,562,588.32 = 170,222,474,981.52/x
  3. Step 3: Cross multiply
    208,435,446,751.05x = 311,249,562,588.32 × 170,222,474,981.52
  4. Step 4: Simplify right side
    208,435,446,751.05x = 52,981,670,880,699,339,505,664
  5. Step 5: Solve for x
    x = 52,981,670,880,699,339,505,664/208,435,446,751.05
  6. Step 6: Final answer
    x = 254,187,431,679.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.