Home / 100,321,804.02-138,433,020.12-56,259,735.48

Finding the Fourth Proportional to 100,321,804.02, 138,433,020.12 and 56,259,735.48

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Solution

The fourth proportional to 100,321,804.02, 138,433,020.12 and 56,259,735.48 is: 77,632,227.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,321,804.02 : 138,433,020.12 = 56,259,735.48 : x
  2. Step 2: Convert to fraction form
    100,321,804.02/138,433,020.12 = 56,259,735.48/x
  3. Step 3: Cross multiply
    100,321,804.02x = 138,433,020.12 × 56,259,735.48
  4. Step 4: Simplify right side
    100,321,804.02x = 7,788,205,093,648,718
  5. Step 5: Solve for x
    x = 7,788,205,093,648,718/100,321,804.02
  6. Step 6: Final answer
    x = 77,632,227.31

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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.