Finding the Fourth Proportional to 556,339,623.63, 767,770,272.42 and 305,454,590.28
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Solution
The fourth proportional to 556,339,623.63, 767,770,272.42 and 305,454,590.28 is: 421,539,189.43
Step by Step Solution
- Step 1: Write the proportion equation
556,339,623.63 : 767,770,272.42 = 305,454,590.28 : x - Step 2: Convert to fraction form
556,339,623.63/767,770,272.42 = 305,454,590.28/x - Step 3: Cross multiply
556,339,623.63x = 767,770,272.42 × 305,454,590.28 - Step 4: Simplify right side
556,339,623.63x = 234,518,953,991,215,040 - Step 5: Solve for x
x = 234,518,953,991,215,040/556,339,623.63 - Step 6: Final answer
x = 421,539,189.43
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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.