Finding the Fourth Proportional to 912,424,589.87, 1,259,170,692.66 and 516,006,859.41
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Solution
The fourth proportional to 912,424,589.87, 1,259,170,692.66 and 516,006,859.41 is: 712,103,467.83
Step by Step Solution
- Step 1: Write the proportion equation
912,424,589.87 : 1,259,170,692.66 = 516,006,859.41 : x - Step 2: Convert to fraction form
912,424,589.87/1,259,170,692.66 = 516,006,859.41/x - Step 3: Cross multiply
912,424,589.87x = 1,259,170,692.66 × 516,006,859.41 - Step 4: Simplify right side
912,424,589.87x = 649,740,714,580,600,960 - Step 5: Solve for x
x = 649,740,714,580,600,960/912,424,589.87 - Step 6: Final answer
x = 712,103,467.83
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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.