Finding the Fourth Proportional to 122,299,156.80, 168,767,776.08 and 66,544,806.72
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Solution
The fourth proportional to 122,299,156.80, 168,767,776.08 and 66,544,806.72 is: 91,829,079.89
Step by Step Solution
- Step 1: Write the proportion equation
122,299,156.80 : 168,767,776.08 = 66,544,806.72 : x - Step 2: Convert to fraction form
122,299,156.80/168,767,776.08 = 66,544,806.72/x - Step 3: Cross multiply
122,299,156.80x = 168,767,776.08 × 66,544,806.72 - Step 4: Simplify right side
122,299,156.80x = 11,230,619,039,807,840 - Step 5: Solve for x
x = 11,230,619,039,807,840/122,299,156.80 - Step 6: Final answer
x = 91,829,079.89
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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.