Home / 815,584,918,916.90-1,223,040,787,733.80-278,406,147,008.48

Finding the Fourth Proportional to 815,584,918,916.90, 1,223,040,787,733.80 and 278,406,147,008.48

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Solution

The fourth proportional to 815,584,918,916.90, 1,223,040,787,733.80 and 278,406,147,008.48 is: 417,494,322,724.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,584,918,916.90 : 1,223,040,787,733.80 = 278,406,147,008.48 : x
  2. Step 2: Convert to fraction form
    815,584,918,916.90/1,223,040,787,733.80 = 278,406,147,008.48/x
  3. Step 3: Cross multiply
    815,584,918,916.90x = 1,223,040,787,733.80 × 278,406,147,008.48
  4. Step 4: Simplify right side
    815,584,918,916.90x = 340,502,073,347,183,493,513,216
  5. Step 5: Solve for x
    x = 340,502,073,347,183,493,513,216/815,584,918,916.90
  6. Step 6: Final answer
    x = 417,494,322,724.08

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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.