Finding the Fourth Proportional to 87,817,345.38, 121,187,817.77 and 48,661,657.83
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Solution
The fourth proportional to 87,817,345.38, 121,187,817.77 and 48,661,657.83 is: 67,153,021.94
Step by Step Solution
- Step 1: Write the proportion equation
87,817,345.38 : 121,187,817.77 = 48,661,657.83 : x - Step 2: Convert to fraction form
87,817,345.38/121,187,817.77 = 48,661,657.83/x - Step 3: Cross multiply
87,817,345.38x = 121,187,817.77 × 48,661,657.83 - Step 4: Simplify right side
87,817,345.38x = 5,897,200,121,244,825 - Step 5: Solve for x
x = 5,897,200,121,244,825/87,817,345.38 - Step 6: Final answer
x = 67,153,021.94
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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.