Home / 680,361,995.03-938,946,741.81-412,449,119.51

Finding the Fourth Proportional to 680,361,995.03, 938,946,741.81 and 412,449,119.51

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Solution

The fourth proportional to 680,361,995.03, 938,946,741.81 and 412,449,119.51 is: 569,208,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,361,995.03 : 938,946,741.81 = 412,449,119.51 : x
  2. Step 2: Convert to fraction form
    680,361,995.03/938,946,741.81 = 412,449,119.51/x
  3. Step 3: Cross multiply
    680,361,995.03x = 938,946,741.81 × 412,449,119.51
  4. Step 4: Simplify right side
    680,361,995.03x = 387,267,756,926,317,760
  5. Step 5: Solve for x
    x = 387,267,756,926,317,760/680,361,995.03
  6. Step 6: Final answer
    x = 569,208,391.64

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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.