Home / 71,279,080.31-98,365,130.87-38,684,032.31

Finding the Fourth Proportional to 71,279,080.31, 98,365,130.87 and 38,684,032.31

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Solution

The fourth proportional to 71,279,080.31, 98,365,130.87 and 38,684,032.31 is: 53,383,964.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,279,080.31 : 98,365,130.87 = 38,684,032.31 : x
  2. Step 2: Convert to fraction form
    71,279,080.31/98,365,130.87 = 38,684,032.31/x
  3. Step 3: Cross multiply
    71,279,080.31x = 98,365,130.87 × 38,684,032.31
  4. Step 4: Simplify right side
    71,279,080.31x = 3,805,159,900,804,951
  5. Step 5: Solve for x
    x = 3,805,159,900,804,951/71,279,080.31
  6. Step 6: Final answer
    x = 53,383,964.61

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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.