Finding the Fourth Proportional to 151,781,089.74, 209,457,859.68 and 82,166,418.96
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Solution
The fourth proportional to 151,781,089.74, 209,457,859.68 and 82,166,418.96 is: 113,389,634.26
Step by Step Solution
- Step 1: Write the proportion equation
151,781,089.74 : 209,457,859.68 = 82,166,418.96 : x - Step 2: Convert to fraction form
151,781,089.74/209,457,859.68 = 82,166,418.96/x - Step 3: Cross multiply
151,781,089.74x = 209,457,859.68 × 82,166,418.96 - Step 4: Simplify right side
151,781,089.74x = 17,210,402,252,931,770 - Step 5: Solve for x
x = 17,210,402,252,931,770/151,781,089.74 - Step 6: Final answer
x = 113,389,634.26
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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.