Finding the Fourth Proportional to 215,457,914.13, 297,333,809.81 and 122,644,389.75
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Solution
The fourth proportional to 215,457,914.13, 297,333,809.81 and 122,644,389.75 is: 169,250,332.73
Step by Step Solution
- Step 1: Write the proportion equation
215,457,914.13 : 297,333,809.81 = 122,644,389.75 : x - Step 2: Convert to fraction form
215,457,914.13/297,333,809.81 = 122,644,389.75/x - Step 3: Cross multiply
215,457,914.13x = 297,333,809.81 × 122,644,389.75 - Step 4: Simplify right side
215,457,914.13x = 36,466,323,656,190,016 - Step 5: Solve for x
x = 36,466,323,656,190,016/215,457,914.13 - Step 6: Final answer
x = 169,250,332.73
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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.