Home / 254,641,087,317.57-351,405,792,986.43-138,900,369,220.68

Finding the Fourth Proportional to 254,641,087,317.57, 351,405,792,986.43 and 138,900,369,220.68

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Solution

The fourth proportional to 254,641,087,317.57, 351,405,792,986.43 and 138,900,369,220.68 is: 191,683,105,449.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,641,087,317.57 : 351,405,792,986.43 = 138,900,369,220.68 : x
  2. Step 2: Convert to fraction form
    254,641,087,317.57/351,405,792,986.43 = 138,900,369,220.68/x
  3. Step 3: Cross multiply
    254,641,087,317.57x = 351,405,792,986.43 × 138,900,369,220.68
  4. Step 4: Simplify right side
    254,641,087,317.57x = 48,810,394,392,100,962,566,144
  5. Step 5: Solve for x
    x = 48,810,394,392,100,962,566,144/254,641,087,317.57
  6. Step 6: Final answer
    x = 191,683,105,449.63

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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.