Home / 279,643,271.56-419,343,349.48-80,178,628.30

Finding the Fourth Proportional to 279,643,271.56, 419,343,349.48 and 80,178,628.30

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Solution

The fourth proportional to 279,643,271.56, 419,343,349.48 and 80,178,628.30 is: 120,233,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,643,271.56 : 419,343,349.48 = 80,178,628.30 : x
  2. Step 2: Convert to fraction form
    279,643,271.56/419,343,349.48 = 80,178,628.30/x
  3. Step 3: Cross multiply
    279,643,271.56x = 419,343,349.48 × 80,178,628.30
  4. Step 4: Simplify right side
    279,643,271.56x = 33,622,374,548,033,920
  5. Step 5: Solve for x
    x = 33,622,374,548,033,920/279,643,271.56
  6. Step 6: Final answer
    x = 120,233,089.68

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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.