Finding the Fourth Proportional to 983,676,138.22, 1,474,606,194.08 and 491,961,526.66
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Solution
The fourth proportional to 983,676,138.22, 1,474,606,194.08 and 491,961,526.66 is: 737,488,169.40
Step by Step Solution
- Step 1: Write the proportion equation
983,676,138.22 : 1,474,606,194.08 = 491,961,526.66 : x - Step 2: Convert to fraction form
983,676,138.22/1,474,606,194.08 = 491,961,526.66/x - Step 3: Cross multiply
983,676,138.22x = 1,474,606,194.08 × 491,961,526.66 - Step 4: Simplify right side
983,676,138.22x = 725,449,514,461,889,024 - Step 5: Solve for x
x = 725,449,514,461,889,024/983,676,138.22 - Step 6: Final answer
x = 737,488,169.40
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Double scale
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1.5x scale
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.