Finding the Fourth Proportional to 395,606,370.25, 545,936,790.95 and 219,421,344.07
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Solution
The fourth proportional to 395,606,370.25, 545,936,790.95 and 219,421,344.07 is: 302,801,454.82
Step by Step Solution
- Step 1: Write the proportion equation
395,606,370.25 : 545,936,790.95 = 219,421,344.07 : x - Step 2: Convert to fraction form
395,606,370.25/545,936,790.95 = 219,421,344.07/x - Step 3: Cross multiply
395,606,370.25x = 545,936,790.95 × 219,421,344.07 - Step 4: Simplify right side
395,606,370.25x = 119,790,184,447,511,616 - Step 5: Solve for x
x = 119,790,184,447,511,616/395,606,370.25 - Step 6: Final answer
x = 302,801,454.82
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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.