Finding the Fourth Proportional to 120,850,116.68, 180,913,859.84 and 74,016,137.03
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Solution
The fourth proportional to 120,850,116.68, 180,913,859.84 and 74,016,137.03 is: 110,802,913.62
Step by Step Solution
- Step 1: Write the proportion equation
120,850,116.68 : 180,913,859.84 = 74,016,137.03 : x - Step 2: Convert to fraction form
120,850,116.68/180,913,859.84 = 74,016,137.03/x - Step 3: Cross multiply
120,850,116.68x = 180,913,859.84 × 74,016,137.03 - Step 4: Simplify right side
120,850,116.68x = 13,390,545,039,269,006 - Step 5: Solve for x
x = 13,390,545,039,269,006/120,850,116.68 - Step 6: Final answer
x = 110,802,913.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.