Finding the Fourth Proportional to 155,245,290.58, 214,239,167.05 and 84,682,438.51
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Solution
The fourth proportional to 155,245,290.58, 214,239,167.05 and 84,682,438.51 is: 116,862,128.46
Step by Step Solution
- Step 1: Write the proportion equation
155,245,290.58 : 214,239,167.05 = 84,682,438.51 : x - Step 2: Convert to fraction form
155,245,290.58/214,239,167.05 = 84,682,438.51/x - Step 3: Cross multiply
155,245,290.58x = 214,239,167.05 × 84,682,438.51 - Step 4: Simplify right side
155,245,290.58x = 18,142,295,089,721,832 - Step 5: Solve for x
x = 18,142,295,089,721,832/155,245,290.58 - Step 6: Final answer
x = 116,862,128.46
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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.