Finding the Fourth Proportional to 472,392,713.45, 708,589,070.18 and 440,107,672.70
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Solution
The fourth proportional to 472,392,713.45, 708,589,070.18 and 440,107,672.70 is: 660,161,509.05
Step by Step Solution
- Step 1: Write the proportion equation
472,392,713.45 : 708,589,070.18 = 440,107,672.70 : x - Step 2: Convert to fraction form
472,392,713.45/708,589,070.18 = 440,107,672.70/x - Step 3: Cross multiply
472,392,713.45x = 708,589,070.18 × 440,107,672.70 - Step 4: Simplify right side
472,392,713.45x = 311,855,486,577,576,768 - Step 5: Solve for x
x = 311,855,486,577,576,768/472,392,713.45 - Step 6: Final answer
x = 660,161,509.05
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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.