Finding the Fourth Proportional to 1,261,684,901.10, 1,741,224,415.89 and 718,548,810.84
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Solution
The fourth proportional to 1,261,684,901.10, 1,741,224,415.89 and 718,548,810.84 is: 991,653,884.70
Step by Step Solution
- Step 1: Write the proportion equation
1,261,684,901.10 : 1,741,224,415.89 = 718,548,810.84 : x - Step 2: Convert to fraction form
1,261,684,901.10/1,741,224,415.89 = 718,548,810.84/x - Step 3: Cross multiply
1,261,684,901.10x = 1,741,224,415.89 × 718,548,810.84 - Step 4: Simplify right side
1,261,684,901.10x = 1,251,154,733,446,063,616 - Step 5: Solve for x
x = 1,251,154,733,446,063,616/1,261,684,901.10 - Step 6: Final answer
x = 991,653,884.70
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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.