Finding the Fourth Proportional to 492,276,495.48, 679,550,738.94 and 306,729,184.74
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Solution
The fourth proportional to 492,276,495.48, 679,550,738.94 and 306,729,184.74 is: 423,416,608.47
Step by Step Solution
- Step 1: Write the proportion equation
492,276,495.48 : 679,550,738.94 = 306,729,184.74 : x - Step 2: Convert to fraction form
492,276,495.48/679,550,738.94 = 306,729,184.74/x - Step 3: Cross multiply
492,276,495.48x = 679,550,738.94 × 306,729,184.74 - Step 4: Simplify right side
492,276,495.48x = 208,438,044,144,530,784 - Step 5: Solve for x
x = 208,438,044,144,530,784/492,276,495.48 - Step 6: Final answer
x = 423,416,608.47
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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.