Finding the Fourth Proportional to 153,761,619.03, 212,190,896.07 and 86,794,676.06
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Solution
The fourth proportional to 153,761,619.03, 212,190,896.07 and 86,794,676.06 is: 119,776,574.95
Step by Step Solution
- Step 1: Write the proportion equation
153,761,619.03 : 212,190,896.07 = 86,794,676.06 : x - Step 2: Convert to fraction form
153,761,619.03/212,190,896.07 = 86,794,676.06/x - Step 3: Cross multiply
153,761,619.03x = 212,190,896.07 × 86,794,676.06 - Step 4: Simplify right side
153,761,619.03x = 18,417,040,086,215,824 - Step 5: Solve for x
x = 18,417,040,086,215,824/153,761,619.03 - Step 6: Final answer
x = 119,776,574.95
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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.