Finding the Fourth Proportional to 68,029,122.80, 93,876,144 and 38,656,378.76
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Solution
The fourth proportional to 68,029,122.80, 93,876,144 and 38,656,378.76 is: 53,343,503.92
Step by Step Solution
- Step 1: Write the proportion equation
68,029,122.80 : 93,876,144 = 38,656,378.76 : x - Step 2: Convert to fraction form
68,029,122.80/93,876,144 = 38,656,378.76/x - Step 3: Cross multiply
68,029,122.80x = 93,876,144 × 38,656,378.76 - Step 4: Simplify right side
68,029,122.80x = 3,628,911,778,992,301 - Step 5: Solve for x
x = 3,628,911,778,992,301/68,029,122.80 - Step 6: Final answer
x = 53,343,503.92
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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.