Finding the Fourth Proportional to 312,062,669.42, 430,645,408.84 and 179,903,035.80
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Solution
The fourth proportional to 312,062,669.42, 430,645,408.84 and 179,903,035.80 is: 248,265,569.69
Step by Step Solution
- Step 1: Write the proportion equation
312,062,669.42 : 430,645,408.84 = 179,903,035.80 : x - Step 2: Convert to fraction form
312,062,669.42/430,645,408.84 = 179,903,035.80/x - Step 3: Cross multiply
312,062,669.42x = 430,645,408.84 × 179,903,035.80 - Step 4: Simplify right side
312,062,669.42x = 77,474,416,403,648,160 - Step 5: Solve for x
x = 77,474,416,403,648,160/312,062,669.42 - Step 6: Final answer
x = 248,265,569.69
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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.