Finding the Fourth Proportional to 122,563,017.99, 169,134,444.09 and 66,807,960.75
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Solution
The fourth proportional to 122,563,017.99, 169,134,444.09 and 66,807,960.75 is: 92,193,611.81
Step by Step Solution
- Step 1: Write the proportion equation
122,563,017.99 : 169,134,444.09 = 66,807,960.75 : x - Step 2: Convert to fraction form
122,563,017.99/169,134,444.09 = 66,807,960.75/x - Step 3: Cross multiply
122,563,017.99x = 169,134,444.09 × 66,807,960.75 - Step 4: Simplify right side
122,563,017.99x = 11,299,527,302,237,790 - Step 5: Solve for x
x = 11,299,527,302,237,790/122,563,017.99 - Step 6: Final answer
x = 92,193,611.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.