Finding the Fourth Proportional to 112,211,287.80, 168,316,931.70 and 48,385,879.80
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Solution
The fourth proportional to 112,211,287.80, 168,316,931.70 and 48,385,879.80 is: 72,578,819.70
Step by Step Solution
- Step 1: Write the proportion equation
112,211,287.80 : 168,316,931.70 = 48,385,879.80 : x - Step 2: Convert to fraction form
112,211,287.80/168,316,931.70 = 48,385,879.80/x - Step 3: Cross multiply
112,211,287.80x = 168,316,931.70 × 48,385,879.80 - Step 4: Simplify right side
112,211,287.80x = 8,144,162,825,541,009 - Step 5: Solve for x
x = 8,144,162,825,541,009/112,211,287.80 - Step 6: Final answer
x = 72,578,819.70
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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.