Finding the Fourth Proportional to 86,016,851.70, 129,025,277.55 and 38,241,107.70
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Solution
The fourth proportional to 86,016,851.70, 129,025,277.55 and 38,241,107.70 is: 57,361,661.55
Step by Step Solution
- Step 1: Write the proportion equation
86,016,851.70 : 129,025,277.55 = 38,241,107.70 : x - Step 2: Convert to fraction form
86,016,851.70/129,025,277.55 = 38,241,107.70/x - Step 3: Cross multiply
86,016,851.70x = 129,025,277.55 × 38,241,107.70 - Step 4: Simplify right side
86,016,851.70x = 4,934,069,534,811,942 - Step 5: Solve for x
x = 4,934,069,534,811,942/86,016,851.70 - Step 6: Final answer
x = 57,361,661.55
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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.