Finding the Fourth Proportional to 99,862,679.08, 137,814,753.17 and 55,809,676.62
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Solution
The fourth proportional to 99,862,679.08, 137,814,753.17 and 55,809,676.62 is: 77,019,732.28
Step by Step Solution
- Step 1: Write the proportion equation
99,862,679.08 : 137,814,753.17 = 55,809,676.62 : x - Step 2: Convert to fraction form
99,862,679.08/137,814,753.17 = 55,809,676.62/x - Step 3: Cross multiply
99,862,679.08x = 137,814,753.17 × 55,809,676.62 - Step 4: Simplify right side
99,862,679.08x = 7,691,396,807,603,771 - Step 5: Solve for x
x = 7,691,396,807,603,771/99,862,679.08 - Step 6: Final answer
x = 77,019,732.28
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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.