Finding the Fourth Proportional to 3,985,460,992.92, 5,975,878,635.35 and 1,886,919,783.09
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Solution
The fourth proportional to 3,985,460,992.92, 5,975,878,635.35 and 1,886,919,783.09 is: 2,829,284,651.99
Step by Step Solution
- Step 1: Write the proportion equation
3,985,460,992.92 : 5,975,878,635.35 = 1,886,919,783.09 : x - Step 2: Convert to fraction form
3,985,460,992.92/5,975,878,635.35 = 1,886,919,783.09/x - Step 3: Cross multiply
3,985,460,992.92x = 5,975,878,635.35 × 1,886,919,783.09 - Step 4: Simplify right side
3,985,460,992.92x = 11,276,003,618,377,353,216 - Step 5: Solve for x
x = 11,276,003,618,377,353,216/3,985,460,992.92 - Step 6: Final answer
x = 2,829,284,651.99
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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.