Finding the Fourth Proportional to 886,470,230.40, 1,329,705,345.60 and 519,138,211.20
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Solution
The fourth proportional to 886,470,230.40, 1,329,705,345.60 and 519,138,211.20 is: 778,707,316.80
Step by Step Solution
- Step 1: Write the proportion equation
886,470,230.40 : 1,329,705,345.60 = 519,138,211.20 : x - Step 2: Convert to fraction form
886,470,230.40/1,329,705,345.60 = 519,138,211.20/x - Step 3: Cross multiply
886,470,230.40x = 1,329,705,345.60 × 519,138,211.20 - Step 4: Simplify right side
886,470,230.40x = 690,300,854,537,861,760 - Step 5: Solve for x
x = 690,300,854,537,861,760/886,470,230.40 - Step 6: Final answer
x = 778,707,316.80
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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.