Finding the Fourth Proportional to 1,505,062,569.55, 2,076,517,765.68 and 869,751,610.63
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Solution
The fourth proportional to 1,505,062,569.55, 2,076,517,765.68 and 869,751,610.63 is: 1,199,986,437.60
Step by Step Solution
- Step 1: Write the proportion equation
1,505,062,569.55 : 2,076,517,765.68 = 869,751,610.63 : x - Step 2: Convert to fraction form
1,505,062,569.55/2,076,517,765.68 = 869,751,610.63/x - Step 3: Cross multiply
1,505,062,569.55x = 2,076,517,765.68 × 869,751,610.63 - Step 4: Simplify right side
1,505,062,569.55x = 1,806,054,671,201,988,864 - Step 5: Solve for x
x = 1,806,054,671,201,988,864/1,505,062,569.55 - Step 6: Final answer
x = 1,199,986,437.60
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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.