Home / 245,725,764.64-368,590,024.77-81,963,071.80

Finding the Fourth Proportional to 245,725,764.64, 368,590,024.77 and 81,963,071.80

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Solution

The fourth proportional to 245,725,764.64, 368,590,024.77 and 81,963,071.80 is: 122,945,067.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,725,764.64 : 368,590,024.77 = 81,963,071.80 : x
  2. Step 2: Convert to fraction form
    245,725,764.64/368,590,024.77 = 81,963,071.80/x
  3. Step 3: Cross multiply
    245,725,764.64x = 368,590,024.77 × 81,963,071.80
  4. Step 4: Simplify right side
    245,725,764.64x = 30,210,770,664,987,284
  5. Step 5: Solve for x
    x = 30,210,770,664,987,284/245,725,764.64
  6. Step 6: Final answer
    x = 122,945,067.28

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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.