Finding the Fourth Proportional to 1,403,662,313.68, 2,102,151,069.05 and 812,206,081.75
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Solution
The fourth proportional to 1,403,662,313.68, 2,102,151,069.05 and 812,206,081.75 is: 1,216,375,097.05
Step by Step Solution
- Step 1: Write the proportion equation
1,403,662,313.68 : 2,102,151,069.05 = 812,206,081.75 : x - Step 2: Convert to fraction form
1,403,662,313.68/2,102,151,069.05 = 812,206,081.75/x - Step 3: Cross multiply
1,403,662,313.68x = 2,102,151,069.05 × 812,206,081.75 - Step 4: Simplify right side
1,403,662,313.68x = 1,707,379,883,029,163,520 - Step 5: Solve for x
x = 1,707,379,883,029,163,520/1,403,662,313.68 - Step 6: Final answer
x = 1,216,375,097.05
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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.