Finding the Fourth Proportional to 86,658,873.92, 129,988,302.98 and 38,136,727.70
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Solution
The fourth proportional to 86,658,873.92, 129,988,302.98 and 38,136,727.70 is: 57,205,088.07
Step by Step Solution
- Step 1: Write the proportion equation
86,658,873.92 : 129,988,302.98 = 38,136,727.70 : x - Step 2: Convert to fraction form
86,658,873.92/129,988,302.98 = 38,136,727.70/x - Step 3: Cross multiply
86,658,873.92x = 129,988,302.98 × 38,136,727.70 - Step 4: Simplify right side
86,658,873.92x = 4,957,328,514,092,733 - Step 5: Solve for x
x = 4,957,328,514,092,733/86,658,873.92 - Step 6: Final answer
x = 57,205,088.07
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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.