Finding the Fourth Proportional to 128,063,228.70, 176,727,052.26 and 69,325,878.18
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Solution
The fourth proportional to 128,063,228.70, 176,727,052.26 and 69,325,878.18 is: 95,669,601.81
Step by Step Solution
- Step 1: Write the proportion equation
128,063,228.70 : 176,727,052.26 = 69,325,878.18 : x - Step 2: Convert to fraction form
128,063,228.70/176,727,052.26 = 69,325,878.18/x - Step 3: Cross multiply
128,063,228.70x = 176,727,052.26 × 69,325,878.18 - Step 4: Simplify right side
128,063,228.70x = 12,251,758,096,087,254 - Step 5: Solve for x
x = 12,251,758,096,087,254/128,063,228.70 - Step 6: Final answer
x = 95,669,601.81
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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.