Home / 81,008,517-111,792,094.32-43,838,799.08

Finding the Fourth Proportional to 81,008,517, 111,792,094.32 and 43,838,799.08

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Solution

The fourth proportional to 81,008,517, 111,792,094.32 and 43,838,799.08 is: 60,497,727.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,008,517 : 111,792,094.32 = 43,838,799.08 : x
  2. Step 2: Convert to fraction form
    81,008,517/111,792,094.32 = 43,838,799.08/x
  3. Step 3: Cross multiply
    81,008,517x = 111,792,094.32 × 43,838,799.08
  4. Step 4: Simplify right side
    81,008,517x = 4,900,831,161,626,889
  5. Step 5: Solve for x
    x = 4,900,831,161,626,889/81,008,517
  6. Step 6: Final answer
    x = 60,497,727.19

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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.