Finding the Fourth Proportional to 877,649,161.87, 1,211,157,462.09 and 475,761,667.87
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Solution
The fourth proportional to 877,649,161.87, 1,211,157,462.09 and 475,761,667.87 is: 656,551,979.14
Step by Step Solution
- Step 1: Write the proportion equation
877,649,161.87 : 1,211,157,462.09 = 475,761,667.87 : x - Step 2: Convert to fraction form
877,649,161.87/1,211,157,462.09 = 475,761,667.87/x - Step 3: Cross multiply
877,649,161.87x = 1,211,157,462.09 × 475,761,667.87 - Step 4: Simplify right side
877,649,161.87x = 576,222,294,217,134,656 - Step 5: Solve for x
x = 576,222,294,217,134,656/877,649,161.87 - Step 6: Final answer
x = 656,551,979.14
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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.