Finding the Fourth Proportional to 212,787,527.10, 319,181,290.65 and 76,486,688.70
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Solution
The fourth proportional to 212,787,527.10, 319,181,290.65 and 76,486,688.70 is: 114,730,033.05
Step by Step Solution
- Step 1: Write the proportion equation
212,787,527.10 : 319,181,290.65 = 76,486,688.70 : x - Step 2: Convert to fraction form
212,787,527.10/319,181,290.65 = 76,486,688.70/x - Step 3: Cross multiply
212,787,527.10x = 319,181,290.65 × 76,486,688.70 - Step 4: Simplify right side
212,787,527.10x = 24,413,120,016,810,768 - Step 5: Solve for x
x = 24,413,120,016,810,768/212,787,527.10 - Step 6: Final answer
x = 114,730,033.05
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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.