Finding the Fourth Proportional to 76,895,856.29, 115,344,083.68 and 18,603,440.74
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Solution
The fourth proportional to 76,895,856.29, 115,344,083.68 and 18,603,440.74 is: 27,905,233.51
Step by Step Solution
- Step 1: Write the proportion equation
76,895,856.29 : 115,344,083.68 = 18,603,440.74 : x - Step 2: Convert to fraction form
76,895,856.29/115,344,083.68 = 18,603,440.74/x - Step 3: Cross multiply
76,895,856.29x = 115,344,083.68 × 18,603,440.74 - Step 4: Simplify right side
76,895,856.29x = 2,145,796,825,357,463.75 - Step 5: Solve for x
x = 2,145,796,825,357,463.75/76,895,856.29 - Step 6: Final answer
x = 27,905,233.51
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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.