Finding the Fourth Proportional to 76,895,857.79, 115,344,085.93 and 18,603,442.24
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Solution
The fourth proportional to 76,895,857.79, 115,344,085.93 and 18,603,442.24 is: 27,905,235.76
Step by Step Solution
- Step 1: Write the proportion equation
76,895,857.79 : 115,344,085.93 = 18,603,442.24 : x - Step 2: Convert to fraction form
76,895,857.79/115,344,085.93 = 18,603,442.24/x - Step 3: Cross multiply
76,895,857.79x = 115,344,085.93 × 18,603,442.24 - Step 4: Simplify right side
76,895,857.79x = 2,145,797,040,324,351.75 - Step 5: Solve for x
x = 2,145,797,040,324,351.75/76,895,857.79 - Step 6: Final answer
x = 27,905,235.76
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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.