Home / 190,647,135.64-286,081,033.16-79,972,894.13

Finding the Fourth Proportional to 190,647,135.64, 286,081,033.16 and 79,972,894.13

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Solution

The fourth proportional to 190,647,135.64, 286,081,033.16 and 79,972,894.13 is: 120,005,622.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,647,135.64 : 286,081,033.16 = 79,972,894.13 : x
  2. Step 2: Convert to fraction form
    190,647,135.64/286,081,033.16 = 79,972,894.13/x
  3. Step 3: Cross multiply
    190,647,135.64x = 286,081,033.16 × 79,972,894.13
  4. Step 4: Simplify right side
    190,647,135.64x = 22,878,728,177,434,984
  5. Step 5: Solve for x
    x = 22,878,728,177,434,984/190,647,135.64
  6. Step 6: Final answer
    x = 120,005,622.43

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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.