Home / 208,764,242,792.28-313,018,207,855.50-81,129,906,277.32

Finding the Fourth Proportional to 208,764,242,792.28, 313,018,207,855.50 and 81,129,906,277.32

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Solution

The fourth proportional to 208,764,242,792.28, 313,018,207,855.50 and 81,129,906,277.32 is: 121,645,055,334.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,764,242,792.28 : 313,018,207,855.50 = 81,129,906,277.32 : x
  2. Step 2: Convert to fraction form
    208,764,242,792.28/313,018,207,855.50 = 81,129,906,277.32/x
  3. Step 3: Cross multiply
    208,764,242,792.28x = 313,018,207,855.50 × 81,129,906,277.32
  4. Step 4: Simplify right side
    208,764,242,792.28x = 25,395,137,866,411,389,485,056
  5. Step 5: Solve for x
    x = 25,395,137,866,411,389,485,056/208,764,242,792.28
  6. Step 6: Final answer
    x = 121,645,055,334.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.