Finding the Fourth Proportional to 3,988,646,679.42, 5,983,091,906.10 and 1,368,414,029.79
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Solution
The fourth proportional to 3,988,646,679.42, 5,983,091,906.10 and 1,368,414,029.79 is: 2,052,662,861.33
Step by Step Solution
- Step 1: Write the proportion equation
3,988,646,679.42 : 5,983,091,906.10 = 1,368,414,029.79 : x - Step 2: Convert to fraction form
3,988,646,679.42/5,983,091,906.10 = 1,368,414,029.79/x - Step 3: Cross multiply
3,988,646,679.42x = 5,983,091,906.10 × 1,368,414,029.79 - Step 4: Simplify right side
3,988,646,679.42x = 8,187,346,905,830,233,088 - Step 5: Solve for x
x = 8,187,346,905,830,233,088/3,988,646,679.42 - Step 6: Final answer
x = 2,052,662,861.33
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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.