Home / 131,047,899.20-196,571,848.80-105,538,731.20

Finding the Fourth Proportional to 131,047,899.20, 196,571,848.80 and 105,538,731.20

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Solution

The fourth proportional to 131,047,899.20, 196,571,848.80 and 105,538,731.20 is: 158,308,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,047,899.20 : 196,571,848.80 = 105,538,731.20 : x
  2. Step 2: Convert to fraction form
    131,047,899.20/196,571,848.80 = 105,538,731.20/x
  3. Step 3: Cross multiply
    131,047,899.20x = 196,571,848.80 × 105,538,731.20
  4. Step 4: Simplify right side
    131,047,899.20x = 20,745,943,511,990,244
  5. Step 5: Solve for x
    x = 20,745,943,511,990,244/131,047,899.20
  6. Step 6: Final answer
    x = 158,308,096.80

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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.