Home / 127,837,513.20-191,835,001.80-55,089,145.20

Finding the Fourth Proportional to 127,837,513.20, 191,835,001.80 and 55,089,145.20

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Solution

The fourth proportional to 127,837,513.20, 191,835,001.80 and 55,089,145.20 is: 82,667,645.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,837,513.20 : 191,835,001.80 = 55,089,145.20 : x
  2. Step 2: Convert to fraction form
    127,837,513.20/191,835,001.80 = 55,089,145.20/x
  3. Step 3: Cross multiply
    127,837,513.20x = 191,835,001.80 × 55,089,145.20
  4. Step 4: Simplify right side
    127,837,513.20x = 10,568,026,268,602,462
  5. Step 5: Solve for x
    x = 10,568,026,268,602,462/127,837,513.20
  6. Step 6: Final answer
    x = 82,667,645.86

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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.