Finding the Fourth Proportional to 491,445,782, 678,190,714.08 and 268,427,417.12
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Solution
The fourth proportional to 491,445,782, 678,190,714.08 and 268,427,417.12 is: 370,427,396.80
Step by Step Solution
- Step 1: Write the proportion equation
491,445,782 : 678,190,714.08 = 268,427,417.12 : x - Step 2: Convert to fraction form
491,445,782/678,190,714.08 = 268,427,417.12/x - Step 3: Cross multiply
491,445,782x = 678,190,714.08 × 268,427,417.12 - Step 4: Simplify right side
491,445,782x = 182,044,981,695,262,816 - Step 5: Solve for x
x = 182,044,981,695,262,816/491,445,782 - Step 6: Final answer
x = 370,427,396.80
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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.