Finding the Fourth Proportional to 138,600,530.42, 191,268,735.79 and 76,720,868.99
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Solution
The fourth proportional to 138,600,530.42, 191,268,735.79 and 76,720,868.99 is: 105,874,801.31
Step by Step Solution
- Step 1: Write the proportion equation
138,600,530.42 : 191,268,735.79 = 76,720,868.99 : x - Step 2: Convert to fraction form
138,600,530.42/191,268,735.79 = 76,720,868.99/x - Step 3: Cross multiply
138,600,530.42x = 191,268,735.79 × 76,720,868.99 - Step 4: Simplify right side
138,600,530.42x = 14,674,303,619,279,368 - Step 5: Solve for x
x = 14,674,303,619,279,368/138,600,530.42 - Step 6: Final answer
x = 105,874,801.31
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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.