Finding the Fourth Proportional to 980,165,062.80, 1,470,247,594.20 and 758,235,301.20
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Solution
The fourth proportional to 980,165,062.80, 1,470,247,594.20 and 758,235,301.20 is: 1,137,352,951.80
Step by Step Solution
- Step 1: Write the proportion equation
980,165,062.80 : 1,470,247,594.20 = 758,235,301.20 : x - Step 2: Convert to fraction form
980,165,062.80/1,470,247,594.20 = 758,235,301.20/x - Step 3: Cross multiply
980,165,062.80x = 1,470,247,594.20 × 758,235,301.20 - Step 4: Simplify right side
980,165,062.80x = 1,114,793,627,426,812,416 - Step 5: Solve for x
x = 1,114,793,627,426,812,416/980,165,062.80 - Step 6: Final answer
x = 1,137,352,951.80
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1.5x scale
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.