Finding the Fourth Proportional to 70,055,278.26, 96,682,259.79 and 39,121,423.62
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Solution
The fourth proportional to 70,055,278.26, 96,682,259.79 and 39,121,423.62 is: 53,990,901.70
Step by Step Solution
- Step 1: Write the proportion equation
70,055,278.26 : 96,682,259.79 = 39,121,423.62 : x - Step 2: Convert to fraction form
70,055,278.26/96,682,259.79 = 39,121,423.62/x - Step 3: Cross multiply
70,055,278.26x = 96,682,259.79 × 39,121,423.62 - Step 4: Simplify right side
70,055,278.26x = 3,782,347,641,783,482 - Step 5: Solve for x
x = 3,782,347,641,783,482/70,055,278.26 - Step 6: Final answer
x = 53,990,901.70
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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.