Finding the Fourth Proportional to 423,545,916.84, 584,507,558 and 235,382,140.12
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Solution
The fourth proportional to 423,545,916.84, 584,507,558 and 235,382,140.12 is: 324,835,240.88
Step by Step Solution
- Step 1: Write the proportion equation
423,545,916.84 : 584,507,558 = 235,382,140.12 : x - Step 2: Convert to fraction form
423,545,916.84/584,507,558 = 235,382,140.12/x - Step 3: Cross multiply
423,545,916.84x = 584,507,558 × 235,382,140.12 - Step 4: Simplify right side
423,545,916.84x = 137,582,639,918,355,024 - Step 5: Solve for x
x = 137,582,639,918,355,024/423,545,916.84 - Step 6: Final answer
x = 324,835,240.88
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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.