Home / 1,197,533,998.80-1,796,300,998.20-421,173,493.20

Finding the Fourth Proportional to 1,197,533,998.80, 1,796,300,998.20 and 421,173,493.20

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Solution

The fourth proportional to 1,197,533,998.80, 1,796,300,998.20 and 421,173,493.20 is: 631,760,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,533,998.80 : 1,796,300,998.20 = 421,173,493.20 : x
  2. Step 2: Convert to fraction form
    1,197,533,998.80/1,796,300,998.20 = 421,173,493.20/x
  3. Step 3: Cross multiply
    1,197,533,998.80x = 1,796,300,998.20 × 421,173,493.20
  4. Step 4: Simplify right side
    1,197,533,998.80x = 756,554,366,250,540,928
  5. Step 5: Solve for x
    x = 756,554,366,250,540,928/1,197,533,998.80
  6. Step 6: Final answer
    x = 631,760,239.80

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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.