Finding the Fourth Proportional to 1,403,605,626.29, 2,105,731,331.37 and 471,052,224.23
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Solution
The fourth proportional to 1,403,605,626.29, 2,105,731,331.37 and 471,052,224.23 is: 706,686,699.37
Step by Step Solution
- Step 1: Write the proportion equation
1,403,605,626.29 : 2,105,731,331.37 = 471,052,224.23 : x - Step 2: Convert to fraction form
1,403,605,626.29/2,105,731,331.37 = 471,052,224.23/x - Step 3: Cross multiply
1,403,605,626.29x = 2,105,731,331.37 × 471,052,224.23 - Step 4: Simplify right side
1,403,605,626.29x = 991,909,427,262,109,056 - Step 5: Solve for x
x = 991,909,427,262,109,056/1,403,605,626.29 - Step 6: Final answer
x = 706,686,699.37
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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.