Finding the Fourth Proportional to 880,268,545.10, 1,320,402,817.65 and 472,121,857.10
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Solution
The fourth proportional to 880,268,545.10, 1,320,402,817.65 and 472,121,857.10 is: 708,182,785.65
Step by Step Solution
- Step 1: Write the proportion equation
880,268,545.10 : 1,320,402,817.65 = 472,121,857.10 : x - Step 2: Convert to fraction form
880,268,545.10/1,320,402,817.65 = 472,121,857.10/x - Step 3: Cross multiply
880,268,545.10x = 1,320,402,817.65 × 472,121,857.10 - Step 4: Simplify right side
880,268,545.10x = 623,391,030,388,990,720 - Step 5: Solve for x
x = 623,391,030,388,990,720/880,268,545.10 - Step 6: Final answer
x = 708,182,785.65
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Similar ratio
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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.