Home / 127,878,917.20-191,818,375.80-47,089,387.60

Finding the Fourth Proportional to 127,878,917.20, 191,818,375.80 and 47,089,387.60

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Solution

The fourth proportional to 127,878,917.20, 191,818,375.80 and 47,089,387.60 is: 70,634,081.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,878,917.20 : 191,818,375.80 = 47,089,387.60 : x
  2. Step 2: Convert to fraction form
    127,878,917.20/191,818,375.80 = 47,089,387.60/x
  3. Step 3: Cross multiply
    127,878,917.20x = 191,818,375.80 × 47,089,387.60
  4. Step 4: Simplify right side
    127,878,917.20x = 9,032,609,846,848,660
  5. Step 5: Solve for x
    x = 9,032,609,846,848,660/127,878,917.20
  6. Step 6: Final answer
    x = 70,634,081.40

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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.