Finding the Fourth Proportional to 122,816,991.48, 169,416,397.44 and 79,356,927.48
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Solution
The fourth proportional to 122,816,991.48, 169,416,397.44 and 79,356,927.48 is: 109,466,651.18
Step by Step Solution
- Step 1: Write the proportion equation
122,816,991.48 : 169,416,397.44 = 79,356,927.48 : x - Step 2: Convert to fraction form
122,816,991.48/169,416,397.44 = 79,356,927.48/x - Step 3: Cross multiply
122,816,991.48x = 169,416,397.44 × 79,356,927.48 - Step 4: Simplify right side
122,816,991.48x = 13,444,364,765,568,938 - Step 5: Solve for x
x = 13,444,364,765,568,938/122,816,991.48 - Step 6: Final answer
x = 109,466,651.18
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.