Home / 129,456,021.80-194,184,032.70-117,512,085.80

Finding the Fourth Proportional to 129,456,021.80, 194,184,032.70 and 117,512,085.80

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Solution

The fourth proportional to 129,456,021.80, 194,184,032.70 and 117,512,085.80 is: 176,268,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,456,021.80 : 194,184,032.70 = 117,512,085.80 : x
  2. Step 2: Convert to fraction form
    129,456,021.80/194,184,032.70 = 117,512,085.80/x
  3. Step 3: Cross multiply
    129,456,021.80x = 194,184,032.70 × 117,512,085.80
  4. Step 4: Simplify right side
    129,456,021.80x = 22,818,970,711,632,404
  5. Step 5: Solve for x
    x = 22,818,970,711,632,404/129,456,021.80
  6. Step 6: Final answer
    x = 176,268,128.70

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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.