Home / 155,409,085.63-214,458,905.22-85,792,968.19

Finding the Fourth Proportional to 155,409,085.63, 214,458,905.22 and 85,792,968.19

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Solution

The fourth proportional to 155,409,085.63, 214,458,905.22 and 85,792,968.19 is: 118,391,186.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,409,085.63 : 214,458,905.22 = 85,792,968.19 : x
  2. Step 2: Convert to fraction form
    155,409,085.63/214,458,905.22 = 85,792,968.19/x
  3. Step 3: Cross multiply
    155,409,085.63x = 214,458,905.22 × 85,792,968.19
  4. Step 4: Simplify right side
    155,409,085.63x = 18,399,066,033,172,720
  5. Step 5: Solve for x
    x = 18,399,066,033,172,720/155,409,085.63
  6. Step 6: Final answer
    x = 118,391,186.45

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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.