Home / 686,802,186.54-1,030,627,022.10-318,268,446.38

Finding the Fourth Proportional to 686,802,186.54, 1,030,627,022.10 and 318,268,446.38

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Solution

The fourth proportional to 686,802,186.54, 1,030,627,022.10 and 318,268,446.38 is: 477,599,034.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,802,186.54 : 1,030,627,022.10 = 318,268,446.38 : x
  2. Step 2: Convert to fraction form
    686,802,186.54/1,030,627,022.10 = 318,268,446.38/x
  3. Step 3: Cross multiply
    686,802,186.54x = 1,030,627,022.10 × 318,268,446.38
  4. Step 4: Simplify right side
    686,802,186.54x = 328,016,061,121,012,928
  5. Step 5: Solve for x
    x = 328,016,061,121,012,928/686,802,186.54
  6. Step 6: Final answer
    x = 477,599,034.41

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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.