Home / 127,152,199.20-190,728,298.80-31,414,087.20

Finding the Fourth Proportional to 127,152,199.20, 190,728,298.80 and 31,414,087.20

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Solution

The fourth proportional to 127,152,199.20, 190,728,298.80 and 31,414,087.20 is: 47,121,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,152,199.20 : 190,728,298.80 = 31,414,087.20 : x
  2. Step 2: Convert to fraction form
    127,152,199.20/190,728,298.80 = 31,414,087.20/x
  3. Step 3: Cross multiply
    127,152,199.20x = 190,728,298.80 × 31,414,087.20
  4. Step 4: Simplify right side
    127,152,199.20x = 5,991,555,410,010,856
  5. Step 5: Solve for x
    x = 5,991,555,410,010,856/127,152,199.20
  6. Step 6: Final answer
    x = 47,121,130.80

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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.