Finding the Fourth Proportional to 78,804,584.70, 118,206,877.05 and 42,524,879.10
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Solution
The fourth proportional to 78,804,584.70, 118,206,877.05 and 42,524,879.10 is: 63,787,318.65
Step by Step Solution
- Step 1: Write the proportion equation
78,804,584.70 : 118,206,877.05 = 42,524,879.10 : x - Step 2: Convert to fraction form
78,804,584.70/118,206,877.05 = 42,524,879.10/x - Step 3: Cross multiply
78,804,584.70x = 118,206,877.05 × 42,524,879.10 - Step 4: Simplify right side
78,804,584.70x = 5,026,733,155,339,815 - Step 5: Solve for x
x = 5,026,733,155,339,815/78,804,584.70 - Step 6: Final answer
x = 63,787,318.65
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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.