Home / 490,029,825.80-734,832,162.30-162,378,734.60

Finding the Fourth Proportional to 490,029,825.80, 734,832,162.30 and 162,378,734.60

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Solution

The fourth proportional to 490,029,825.80, 734,832,162.30 and 162,378,734.60 is: 243,497,661.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,029,825.80 : 734,832,162.30 = 162,378,734.60 : x
  2. Step 2: Convert to fraction form
    490,029,825.80/734,832,162.30 = 162,378,734.60/x
  3. Step 3: Cross multiply
    490,029,825.80x = 734,832,162.30 × 162,378,734.60
  4. Step 4: Simplify right side
    490,029,825.80x = 119,321,116,657,655,808
  5. Step 5: Solve for x
    x = 119,321,116,657,655,808/490,029,825.80
  6. Step 6: Final answer
    x = 243,497,661.52

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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.