Finding the Fourth Proportional to 3,971,444,985.68, 5,480,981,196.64 and 2,966,117,193.12
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Solution
The fourth proportional to 3,971,444,985.68, 5,480,981,196.64 and 2,966,117,193.12 is: 4,093,530,848.63
Step by Step Solution
- Step 1: Write the proportion equation
3,971,444,985.68 : 5,480,981,196.64 = 2,966,117,193.12 : x - Step 2: Convert to fraction form
3,971,444,985.68/5,480,981,196.64 = 2,966,117,193.12/x - Step 3: Cross multiply
3,971,444,985.68x = 5,480,981,196.64 × 2,966,117,193.12 - Step 4: Simplify right side
3,971,444,985.68x = 16,257,232,562,521,335,808 - Step 5: Solve for x
x = 16,257,232,562,521,335,808/3,971,444,985.68 - Step 6: Final answer
x = 4,093,530,848.63
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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.