Finding the Fourth Proportional to 978,306,226.92, 1,468,378,741.68 and 512,302,132.08
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Solution
The fourth proportional to 978,306,226.92, 1,468,378,741.68 and 512,302,132.08 is: 768,934,653.96
Step by Step Solution
- Step 1: Write the proportion equation
978,306,226.92 : 1,468,378,741.68 = 512,302,132.08 : x - Step 2: Convert to fraction form
978,306,226.92/1,468,378,741.68 = 512,302,132.08/x - Step 3: Cross multiply
978,306,226.92x = 1,468,378,741.68 × 512,302,132.08 - Step 4: Simplify right side
978,306,226.92x = 752,253,560,063,611,520 - Step 5: Solve for x
x = 752,253,560,063,611,520/978,306,226.92 - Step 6: Final answer
x = 768,934,653.96
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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.