Home / 155,409,085.88-214,458,905.56-85,792,968.44

Finding the Fourth Proportional to 155,409,085.88, 214,458,905.56 and 85,792,968.44

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Solution

The fourth proportional to 155,409,085.88, 214,458,905.56 and 85,792,968.44 is: 118,391,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,409,085.88 : 214,458,905.56 = 85,792,968.44 : x
  2. Step 2: Convert to fraction form
    155,409,085.88/214,458,905.56 = 85,792,968.44/x
  3. Step 3: Cross multiply
    155,409,085.88x = 214,458,905.56 × 85,792,968.44
  4. Step 4: Simplify right side
    155,409,085.88x = 18,399,066,116,386,020
  5. Step 5: Solve for x
    x = 18,399,066,116,386,020/155,409,085.88
  6. Step 6: Final answer
    x = 118,391,186.80

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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.