Home / 312,208,613.73-468,131,392.31-118,135,021.05

Finding the Fourth Proportional to 312,208,613.73, 468,131,392.31 and 118,135,021.05

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Solution

The fourth proportional to 312,208,613.73, 468,131,392.31 and 118,135,021.05 is: 177,133,844.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,208,613.73 : 468,131,392.31 = 118,135,021.05 : x
  2. Step 2: Convert to fraction form
    312,208,613.73/468,131,392.31 = 118,135,021.05/x
  3. Step 3: Cross multiply
    312,208,613.73x = 468,131,392.31 × 118,135,021.05
  4. Step 4: Simplify right side
    312,208,613.73x = 55,302,711,884,116,984
  5. Step 5: Solve for x
    x = 55,302,711,884,116,984/312,208,613.73
  6. Step 6: Final answer
    x = 177,133,844.01

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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.