Finding the Fourth Proportional to 1,022,169,203.48, 1,411,757,067.68 and 687,059,932.88
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Solution
The fourth proportional to 1,022,169,203.48, 1,411,757,067.68 and 687,059,932.88 is: 948,924,808.99
Step by Step Solution
- Step 1: Write the proportion equation
1,022,169,203.48 : 1,411,757,067.68 = 687,059,932.88 : x - Step 2: Convert to fraction form
1,022,169,203.48/1,411,757,067.68 = 687,059,932.88/x - Step 3: Cross multiply
1,022,169,203.48x = 1,411,757,067.68 × 687,059,932.88 - Step 4: Simplify right side
1,022,169,203.48x = 969,961,716,163,086,464 - Step 5: Solve for x
x = 969,961,716,163,086,464/1,022,169,203.48 - Step 6: Final answer
x = 948,924,808.99
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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.