Finding the Fourth Proportional to 554,402,120.70, 765,074,941.76 and 306,883,474.94
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Solution
The fourth proportional to 554,402,120.70, 765,074,941.76 and 306,883,474.94 is: 423,499,203.83
Step by Step Solution
- Step 1: Write the proportion equation
554,402,120.70 : 765,074,941.76 = 306,883,474.94 : x - Step 2: Convert to fraction form
554,402,120.70/765,074,941.76 = 306,883,474.94/x - Step 3: Cross multiply
554,402,120.70x = 765,074,941.76 × 306,883,474.94 - Step 4: Simplify right side
554,402,120.70x = 234,788,856,716,826,912 - Step 5: Solve for x
x = 234,788,856,716,826,912/554,402,120.70 - Step 6: Final answer
x = 423,499,203.83
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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.