Home / 86,314,223.09-129,489,997.04-45,918,836.21

Finding the Fourth Proportional to 86,314,223.09, 129,489,997.04 and 45,918,836.21

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Solution

The fourth proportional to 86,314,223.09, 129,489,997.04 and 45,918,836.21 is: 68,888,182.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,314,223.09 : 129,489,997.04 = 45,918,836.21 : x
  2. Step 2: Convert to fraction form
    86,314,223.09/129,489,997.04 = 45,918,836.21/x
  3. Step 3: Cross multiply
    86,314,223.09x = 129,489,997.04 × 45,918,836.21
  4. Step 4: Simplify right side
    86,314,223.09x = 5,946,029,964,683,551
  5. Step 5: Solve for x
    x = 5,946,029,964,683,551/86,314,223.09
  6. Step 6: Final answer
    x = 68,888,182.64

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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.