Finding the Fourth Proportional to 496,509,345.12, 685,157,572.20 and 273,486,225.68
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Solution
The fourth proportional to 496,509,345.12, 685,157,572.20 and 273,486,225.68 is: 377,397,042.49
Step by Step Solution
- Step 1: Write the proportion equation
496,509,345.12 : 685,157,572.20 = 273,486,225.68 : x - Step 2: Convert to fraction form
496,509,345.12/685,157,572.20 = 273,486,225.68/x - Step 3: Cross multiply
496,509,345.12x = 685,157,572.20 × 273,486,225.68 - Step 4: Simplify right side
496,509,345.12x = 187,381,158,417,050,112 - Step 5: Solve for x
x = 187,381,158,417,050,112/496,509,345.12 - Step 6: Final answer
x = 377,397,042.49
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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.