Finding the Fourth Proportional to 1,181,221,269.84, 1,630,035,718.56 and 679,392,162.36
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Solution
The fourth proportional to 1,181,221,269.84, 1,630,035,718.56 and 679,392,162.36 is: 937,532,636.63
Step by Step Solution
- Step 1: Write the proportion equation
1,181,221,269.84 : 1,630,035,718.56 = 679,392,162.36 : x - Step 2: Convert to fraction form
1,181,221,269.84/1,630,035,718.56 = 679,392,162.36/x - Step 3: Cross multiply
1,181,221,269.84x = 1,630,035,718.56 × 679,392,162.36 - Step 4: Simplify right side
1,181,221,269.84x = 1,107,433,491,556,514,816 - Step 5: Solve for x
x = 1,107,433,491,556,514,816/1,181,221,269.84 - Step 6: Final answer
x = 937,532,636.63
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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.