Finding the Fourth Proportional to 958,977,713.46, 1,322,660,021.64 and 825,241,042.62
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Solution
The fourth proportional to 958,977,713.46, 1,322,660,021.64 and 825,241,042.62 is: 1,138,205,111.52
Step by Step Solution
- Step 1: Write the proportion equation
958,977,713.46 : 1,322,660,021.64 = 825,241,042.62 : x - Step 2: Convert to fraction form
958,977,713.46/1,322,660,021.64 = 825,241,042.62/x - Step 3: Cross multiply
958,977,713.46x = 1,322,660,021.64 × 825,241,042.62 - Step 4: Simplify right side
958,977,713.46x = 1,091,513,335,289,985,408 - Step 5: Solve for x
x = 1,091,513,335,289,985,408/958,977,713.46 - Step 6: Final answer
x = 1,138,205,111.52
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1.5x scale
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.