Finding the Fourth Proportional to 520,218,644.26, 780,330,574.05 and 132,041,590.42
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Solution
The fourth proportional to 520,218,644.26, 780,330,574.05 and 132,041,590.42 is: 198,063,047.50
Step by Step Solution
- Step 1: Write the proportion equation
520,218,644.26 : 780,330,574.05 = 132,041,590.42 : x - Step 2: Convert to fraction form
520,218,644.26/780,330,574.05 = 132,041,590.42/x - Step 3: Cross multiply
520,218,644.26x = 780,330,574.05 × 132,041,590.42 - Step 4: Simplify right side
520,218,644.26x = 103,036,090,050,913,568 - Step 5: Solve for x
x = 103,036,090,050,913,568/520,218,644.26 - Step 6: Final answer
x = 198,063,047.50
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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.