Finding the Fourth Proportional to 2,809,610,186.77, 4,214,674,342.12 and 918,816,167.68
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Solution
The fourth proportional to 2,809,610,186.77, 4,214,674,342.12 and 918,816,167.68 is: 1,378,308,971.57
Step by Step Solution
- Step 1: Write the proportion equation
2,809,610,186.77 : 4,214,674,342.12 = 918,816,167.68 : x - Step 2: Convert to fraction form
2,809,610,186.77/4,214,674,342.12 = 918,816,167.68/x - Step 3: Cross multiply
2,809,610,186.77x = 4,214,674,342.12 × 918,816,167.68 - Step 4: Simplify right side
2,809,610,186.77x = 3,872,510,927,034,927,616 - Step 5: Solve for x
x = 3,872,510,927,034,927,616/2,809,610,186.77 - Step 6: Final answer
x = 1,378,308,971.57
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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.