Home / 71,339,055.84-98,453,968.56-40,404,728.16

Finding the Fourth Proportional to 71,339,055.84, 98,453,968.56 and 40,404,728.16

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Solution

The fourth proportional to 71,339,055.84, 98,453,968.56 and 40,404,728.16 is: 55,761,963.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,339,055.84 : 98,453,968.56 = 40,404,728.16 : x
  2. Step 2: Convert to fraction form
    71,339,055.84/98,453,968.56 = 40,404,728.16/x
  3. Step 3: Cross multiply
    71,339,055.84x = 98,453,968.56 × 40,404,728.16
  4. Step 4: Simplify right side
    71,339,055.84x = 3,978,005,835,939,986.50
  5. Step 5: Solve for x
    x = 3,978,005,835,939,986.50/71,339,055.84
  6. Step 6: Final answer
    x = 55,761,963.61

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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.