Home / 200,084,762.64-276,145,971.21-115,295,385.68

Finding the Fourth Proportional to 200,084,762.64, 276,145,971.21 and 115,295,385.68

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Solution

The fourth proportional to 200,084,762.64, 276,145,971.21 and 115,295,385.68 is: 159,124,342.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,084,762.64 : 276,145,971.21 = 115,295,385.68 : x
  2. Step 2: Convert to fraction form
    200,084,762.64/276,145,971.21 = 115,295,385.68/x
  3. Step 3: Cross multiply
    200,084,762.64x = 276,145,971.21 × 115,295,385.68
  4. Step 4: Simplify right side
    200,084,762.64x = 31,838,356,253,254,392
  5. Step 5: Solve for x
    x = 31,838,356,253,254,392/200,084,762.64
  6. Step 6: Final answer
    x = 159,124,342.27

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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.