Finding the Fourth Proportional to 819,502,651.38, 1,130,198,943.76 and 580,875,844.62
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Solution
The fourth proportional to 819,502,651.38, 1,130,198,943.76 and 580,875,844.62 is: 801,102,064.70
Step by Step Solution
- Step 1: Write the proportion equation
819,502,651.38 : 1,130,198,943.76 = 580,875,844.62 : x - Step 2: Convert to fraction form
819,502,651.38/1,130,198,943.76 = 580,875,844.62/x - Step 3: Cross multiply
819,502,651.38x = 1,130,198,943.76 × 580,875,844.62 - Step 4: Simplify right side
819,502,651.38x = 656,505,266,045,221,888 - Step 5: Solve for x
x = 656,505,266,045,221,888/819,502,651.38 - Step 6: Final answer
x = 801,102,064.70
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.