Home / 2,989,235-4,127,010.54-1,918,013.24

Finding the Fourth Proportional to 2,989,235, 4,127,010.54 and 1,918,013.24

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Solution

The fourth proportional to 2,989,235, 4,127,010.54 and 1,918,013.24 is: 2,648,055.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,235 : 4,127,010.54 = 1,918,013.24 : x
  2. Step 2: Convert to fraction form
    2,989,235/4,127,010.54 = 1,918,013.24/x
  3. Step 3: Cross multiply
    2,989,235x = 4,127,010.54 × 1,918,013.24
  4. Step 4: Simplify right side
    2,989,235x = 7,915,660,857,339.55
  5. Step 5: Solve for x
    x = 7,915,660,857,339.55/2,989,235
  6. Step 6: Final answer
    x = 2,648,055.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.