Home / 128,960,105.40-193,394,999.70-38,059,625.40

Finding the Fourth Proportional to 128,960,105.40, 193,394,999.70 and 38,059,625.40

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Solution

The fourth proportional to 128,960,105.40, 193,394,999.70 and 38,059,625.40 is: 57,076,110.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,960,105.40 : 193,394,999.70 = 38,059,625.40 : x
  2. Step 2: Convert to fraction form
    128,960,105.40/193,394,999.70 = 38,059,625.40/x
  3. Step 3: Cross multiply
    128,960,105.40x = 193,394,999.70 × 38,059,625.40
  4. Step 4: Simplify right side
    128,960,105.40x = 7,360,541,242,815,112
  5. Step 5: Solve for x
    x = 7,360,541,242,815,112/128,960,105.40
  6. Step 6: Final answer
    x = 57,076,110.63

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1.5x scale

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.