Home / 853,189,718.73-1,278,660,905.01-361,294,332.18

Finding the Fourth Proportional to 853,189,718.73, 1,278,660,905.01 and 361,294,332.18

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Solution

The fourth proportional to 853,189,718.73, 1,278,660,905.01 and 361,294,332.18 is: 541,465,664.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,189,718.73 : 1,278,660,905.01 = 361,294,332.18 : x
  2. Step 2: Convert to fraction form
    853,189,718.73/1,278,660,905.01 = 361,294,332.18/x
  3. Step 3: Cross multiply
    853,189,718.73x = 1,278,660,905.01 × 361,294,332.18
  4. Step 4: Simplify right side
    853,189,718.73x = 461,972,937,760,262,400
  5. Step 5: Solve for x
    x = 461,972,937,760,262,400/853,189,718.73
  6. Step 6: Final answer
    x = 541,465,664.22

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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.