Finding the Fourth Proportional to 88,640,709.18, 121,437,205.13 and 85,325,959.38
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Solution
The fourth proportional to 88,640,709.18, 121,437,205.13 and 85,325,959.38 is: 116,896,019.09
Step by Step Solution
- Step 1: Write the proportion equation
88,640,709.18 : 121,437,205.13 = 85,325,959.38 : x - Step 2: Convert to fraction form
88,640,709.18/121,437,205.13 = 85,325,959.38/x - Step 3: Cross multiply
88,640,709.18x = 121,437,205.13 × 85,325,959.38 - Step 4: Simplify right side
88,640,709.18x = 10,361,746,032,143,106 - Step 5: Solve for x
x = 10,361,746,032,143,106/88,640,709.18 - Step 6: Final answer
x = 116,896,019.09
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.