Finding the Fourth Proportional to 649,319,471.44, 896,036,855.67 and 351,955,329.05
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Solution
The fourth proportional to 649,319,471.44, 896,036,855.67 and 351,955,329.05 is: 485,685,337.12
Step by Step Solution
- Step 1: Write the proportion equation
649,319,471.44 : 896,036,855.67 = 351,955,329.05 : x - Step 2: Convert to fraction form
649,319,471.44/896,036,855.67 = 351,955,329.05/x - Step 3: Cross multiply
649,319,471.44x = 896,036,855.67 × 351,955,329.05 - Step 4: Simplify right side
649,319,471.44x = 315,364,946,380,502,272 - Step 5: Solve for x
x = 315,364,946,380,502,272/649,319,471.44 - Step 6: Final answer
x = 485,685,337.12
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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.