Finding the Fourth Proportional to 69,629,062.65, 96,083,894.30 and 38,688,173.97
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Solution
The fourth proportional to 69,629,062.65, 96,083,894.30 and 38,688,173.97 is: 53,387,339.66
Step by Step Solution
- Step 1: Write the proportion equation
69,629,062.65 : 96,083,894.30 = 38,688,173.97 : x - Step 2: Convert to fraction form
69,629,062.65/96,083,894.30 = 38,688,173.97/x - Step 3: Cross multiply
69,629,062.65x = 96,083,894.30 × 38,688,173.97 - Step 4: Simplify right side
69,629,062.65x = 3,717,310,418,200,050.50 - Step 5: Solve for x
x = 3,717,310,418,200,050.50/69,629,062.65 - Step 6: Final answer
x = 53,387,339.66
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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.