Home / 1,245,458,317,735.40-1,867,998,716,272.30-338,966,765,040.12

Finding the Fourth Proportional to 1,245,458,317,735.40, 1,867,998,716,272.30 and 338,966,765,040.12

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Solution

The fourth proportional to 1,245,458,317,735.40, 1,867,998,716,272.30 and 338,966,765,040.12 is: 508,398,774,119.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,458,317,735.40 : 1,867,998,716,272.30 = 338,966,765,040.12 : x
  2. Step 2: Convert to fraction form
    1,245,458,317,735.40/1,867,998,716,272.30 = 338,966,765,040.12/x
  3. Step 3: Cross multiply
    1,245,458,317,735.40x = 1,867,998,716,272.30 × 338,966,765,040.12
  4. Step 4: Simplify right side
    1,245,458,317,735.40x = 633,189,481,953,918,554,472,448
  5. Step 5: Solve for x
    x = 633,189,481,953,918,554,472,448/1,245,458,317,735.40
  6. Step 6: Final answer
    x = 508,398,774,119.75

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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.