Finding the Fourth Proportional to 86,921,128.08, 119,957,828.45 and 49,763,062.94
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Solution
The fourth proportional to 86,921,128.08, 119,957,828.45 and 49,763,062.94 is: 68,676,846.45
Step by Step Solution
- Step 1: Write the proportion equation
86,921,128.08 : 119,957,828.45 = 49,763,062.94 : x - Step 2: Convert to fraction form
86,921,128.08/119,957,828.45 = 49,763,062.94/x - Step 3: Cross multiply
86,921,128.08x = 119,957,828.45 × 49,763,062.94 - Step 4: Simplify right side
86,921,128.08x = 5,969,468,966,454,468 - Step 5: Solve for x
x = 5,969,468,966,454,468/86,921,128.08 - Step 6: Final answer
x = 68,676,846.45
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.