Finding the Fourth Proportional to 1,031,080,135.18, 1,422,890,507.62 and 561,184,825.26
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Solution
The fourth proportional to 1,031,080,135.18, 1,422,890,507.62 and 561,184,825.26 is: 774,435,015.90
Step by Step Solution
- Step 1: Write the proportion equation
1,031,080,135.18 : 1,422,890,507.62 = 561,184,825.26 : x - Step 2: Convert to fraction form
1,031,080,135.18/1,422,890,507.62 = 561,184,825.26/x - Step 3: Cross multiply
1,031,080,135.18x = 1,422,890,507.62 × 561,184,825.26 - Step 4: Simplify right side
1,031,080,135.18x = 798,504,560,882,842,368 - Step 5: Solve for x
x = 798,504,560,882,842,368/1,031,080,135.18 - Step 6: Final answer
x = 774,435,015.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.