Home / 136,823,039.91-188,834,580-83,890,383.93

Finding the Fourth Proportional to 136,823,039.91, 188,834,580 and 83,890,383.93

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Solution

The fourth proportional to 136,823,039.91, 188,834,580 and 83,890,383.93 is: 115,780,247.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,823,039.91 : 188,834,580 = 83,890,383.93 : x
  2. Step 2: Convert to fraction form
    136,823,039.91/188,834,580 = 83,890,383.93/x
  3. Step 3: Cross multiply
    136,823,039.91x = 188,834,580 × 83,890,383.93
  4. Step 4: Simplify right side
    136,823,039.91x = 15,841,405,415,460,300
  5. Step 5: Solve for x
    x = 15,841,405,415,460,300/136,823,039.91
  6. Step 6: Final answer
    x = 115,780,247.43

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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.