Finding the Fourth Proportional to 55,170,756.48, 76,130,193.28 and 30,726,744.96
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Solution
The fourth proportional to 55,170,756.48, 76,130,193.28 and 30,726,744.96 is: 42,399,872.36
Step by Step Solution
- Step 1: Write the proportion equation
55,170,756.48 : 76,130,193.28 = 30,726,744.96 : x - Step 2: Convert to fraction form
55,170,756.48/76,130,193.28 = 30,726,744.96/x - Step 3: Cross multiply
55,170,756.48x = 76,130,193.28 × 30,726,744.96 - Step 4: Simplify right side
55,170,756.48x = 2,339,233,032,670,066 - Step 5: Solve for x
x = 2,339,233,032,670,066/55,170,756.48 - Step 6: Final answer
x = 42,399,872.36
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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.