Finding the Fourth Proportional to 378,358,653.94, 522,134,711.49 and 204,518,397.94
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Solution
The fourth proportional to 378,358,653.94, 522,134,711.49 and 204,518,397.94 is: 282,235,264.32
Step by Step Solution
- Step 1: Write the proportion equation
378,358,653.94 : 522,134,711.49 = 204,518,397.94 : x - Step 2: Convert to fraction form
378,358,653.94/522,134,711.49 = 204,518,397.94/x - Step 3: Cross multiply
378,358,653.94x = 522,134,711.49 × 204,518,397.94 - Step 4: Simplify right side
378,358,653.94x = 106,786,154,702,798,912 - Step 5: Solve for x
x = 106,786,154,702,798,912/378,358,653.94 - Step 6: Final answer
x = 282,235,264.32
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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.