Finding the Fourth Proportional to 407,409,482.78, 562,193,031.48 and 231,197,476.42
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Solution
The fourth proportional to 407,409,482.78, 562,193,031.48 and 231,197,476.42 is: 319,034,326.96
Step by Step Solution
- Step 1: Write the proportion equation
407,409,482.78 : 562,193,031.48 = 231,197,476.42 : x - Step 2: Convert to fraction form
407,409,482.78/562,193,031.48 = 231,197,476.42/x - Step 3: Cross multiply
407,409,482.78x = 562,193,031.48 × 231,197,476.42 - Step 4: Simplify right side
407,409,482.78x = 129,977,610,135,761,856 - Step 5: Solve for x
x = 129,977,610,135,761,856/407,409,482.78 - Step 6: Final answer
x = 319,034,326.96
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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.