Finding the Fourth Proportional to 472,392,407.70, 708,588,611.55 and 440,107,366.95
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Solution
The fourth proportional to 472,392,407.70, 708,588,611.55 and 440,107,366.95 is: 660,161,050.43
Step by Step Solution
- Step 1: Write the proportion equation
472,392,407.70 : 708,588,611.55 = 440,107,366.95 : x - Step 2: Convert to fraction form
472,392,407.70/708,588,611.55 = 440,107,366.95/x - Step 3: Cross multiply
472,392,407.70x = 708,588,611.55 × 440,107,366.95 - Step 4: Simplify right side
472,392,407.70x = 311,855,068,080,026,816 - Step 5: Solve for x
x = 311,855,068,080,026,816/472,392,407.70 - Step 6: Final answer
x = 660,161,050.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.