Home / 203,039,066,921.51-280,200,631,987.93-111,590,859,170.70

Finding the Fourth Proportional to 203,039,066,921.51, 280,200,631,987.93 and 111,590,859,170.70

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Solution

The fourth proportional to 203,039,066,921.51, 280,200,631,987.93 and 111,590,859,170.70 is: 153,999,078,787.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,039,066,921.51 : 280,200,631,987.93 = 111,590,859,170.70 : x
  2. Step 2: Convert to fraction form
    203,039,066,921.51/280,200,631,987.93 = 111,590,859,170.70/x
  3. Step 3: Cross multiply
    203,039,066,921.51x = 280,200,631,987.93 × 111,590,859,170.70
  4. Step 4: Simplify right side
    203,039,066,921.51x = 31,267,829,263,706,231,930,880
  5. Step 5: Solve for x
    x = 31,267,829,263,706,231,930,880/203,039,066,921.51
  6. Step 6: Final answer
    x = 153,999,078,787.11

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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.