Home / 1,642,537,074.89-2,463,805,640.87-398,959,159.15

Finding the Fourth Proportional to 1,642,537,074.89, 2,463,805,640.87 and 398,959,159.15

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Solution

The fourth proportional to 1,642,537,074.89, 2,463,805,640.87 and 398,959,159.15 is: 598,438,745.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,537,074.89 : 2,463,805,640.87 = 398,959,159.15 : x
  2. Step 2: Convert to fraction form
    1,642,537,074.89/2,463,805,640.87 = 398,959,159.15/x
  3. Step 3: Cross multiply
    1,642,537,074.89x = 2,463,805,640.87 × 398,959,159.15
  4. Step 4: Simplify right side
    1,642,537,074.89x = 982,957,826,785,359,872
  5. Step 5: Solve for x
    x = 982,957,826,785,359,872/1,642,537,074.89
  6. Step 6: Final answer
    x = 598,438,745.65

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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.