Finding the Fourth Proportional to 312,074,916.14, 430,500,107.58 and 192,959,431.61
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Solution
The fourth proportional to 312,074,916.14, 430,500,107.58 and 192,959,431.61 is: 266,183,059.79
Step by Step Solution
- Step 1: Write the proportion equation
312,074,916.14 : 430,500,107.58 = 192,959,431.61 : x - Step 2: Convert to fraction form
312,074,916.14/430,500,107.58 = 192,959,431.61/x - Step 3: Cross multiply
312,074,916.14x = 430,500,107.58 × 192,959,431.61 - Step 4: Simplify right side
312,074,916.14x = 83,069,056,063,804,560 - Step 5: Solve for x
x = 83,069,056,063,804,560/312,074,916.14 - Step 6: Final answer
x = 266,183,059.79
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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.