Finding the Fourth Proportional to 345,629,049.42, 518,444,099.94 and 141,157,124.68
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Solution
The fourth proportional to 345,629,049.42, 518,444,099.94 and 141,157,124.68 is: 211,735,901.76
Step by Step Solution
- Step 1: Write the proportion equation
345,629,049.42 : 518,444,099.94 = 141,157,124.68 : x - Step 2: Convert to fraction form
345,629,049.42/518,444,099.94 = 141,157,124.68/x - Step 3: Cross multiply
345,629,049.42x = 518,444,099.94 × 141,157,124.68 - Step 4: Simplify right side
345,629,049.42x = 73,182,078,454,840,960 - Step 5: Solve for x
x = 73,182,078,454,840,960/345,629,049.42 - Step 6: Final answer
x = 211,735,901.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.