Finding the Fourth Proportional to 405,136,556.27, 558,779,979.97 and 348,717,326.55
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Solution
The fourth proportional to 405,136,556.27, 558,779,979.97 and 348,717,326.55 is: 480,964,400.10
Step by Step Solution
- Step 1: Write the proportion equation
405,136,556.27 : 558,779,979.97 = 348,717,326.55 : x - Step 2: Convert to fraction form
405,136,556.27/558,779,979.97 = 348,717,326.55/x - Step 3: Cross multiply
405,136,556.27x = 558,779,979.97 × 348,717,326.55 - Step 4: Simplify right side
405,136,556.27x = 194,856,260,744,800,960 - Step 5: Solve for x
x = 194,856,260,744,800,960/405,136,556.27 - Step 6: Final answer
x = 480,964,400.10
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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.