Home / 127,939,508.40-191,909,262.60-126,026,320.80

Finding the Fourth Proportional to 127,939,508.40, 191,909,262.60 and 126,026,320.80

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Solution

The fourth proportional to 127,939,508.40, 191,909,262.60 and 126,026,320.80 is: 189,039,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,939,508.40 : 191,909,262.60 = 126,026,320.80 : x
  2. Step 2: Convert to fraction form
    127,939,508.40/191,909,262.60 = 126,026,320.80/x
  3. Step 3: Cross multiply
    127,939,508.40x = 191,909,262.60 × 126,026,320.80
  4. Step 4: Simplify right side
    127,939,508.40x = 24,185,618,292,919,040
  5. Step 5: Solve for x
    x = 24,185,618,292,919,040/127,939,508.40
  6. Step 6: Final answer
    x = 189,039,481.20

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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.