Finding the Fourth Proportional to 77,202,879.40, 115,804,319.10 and 26,084,160.10
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Solution
The fourth proportional to 77,202,879.40, 115,804,319.10 and 26,084,160.10 is: 39,126,240.15
Step by Step Solution
- Step 1: Write the proportion equation
77,202,879.40 : 115,804,319.10 = 26,084,160.10 : x - Step 2: Convert to fraction form
77,202,879.40/115,804,319.10 = 26,084,160.10/x - Step 3: Cross multiply
77,202,879.40x = 115,804,319.10 × 26,084,160.10 - Step 4: Simplify right side
77,202,879.40x = 3,020,658,399,675,888 - Step 5: Solve for x
x = 3,020,658,399,675,888/77,202,879.40 - Step 6: Final answer
x = 39,126,240.15
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1.5x scale
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.