Home / 371,111,975.68-512,146,241.76-222,384,078.40

Finding the Fourth Proportional to 371,111,975.68, 512,146,241.76 and 222,384,078.40

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Solution

The fourth proportional to 371,111,975.68, 512,146,241.76 and 222,384,078.40 is: 306,897,048.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,111,975.68 : 512,146,241.76 = 222,384,078.40 : x
  2. Step 2: Convert to fraction form
    371,111,975.68/512,146,241.76 = 222,384,078.40/x
  3. Step 3: Cross multiply
    371,111,975.68x = 512,146,241.76 × 222,384,078.40
  4. Step 4: Simplify right side
    371,111,975.68x = 113,893,169,979,821,200
  5. Step 5: Solve for x
    x = 113,893,169,979,821,200/371,111,975.68
  6. Step 6: Final answer
    x = 306,897,048.45

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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.