Finding the Fourth Proportional to 5,343,450.12, 7,374,050.73 and 2,896,139.88
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Solution
The fourth proportional to 5,343,450.12, 7,374,050.73 and 2,896,139.88 is: 3,996,721.58
Step by Step Solution
- Step 1: Write the proportion equation
5,343,450.12 : 7,374,050.73 = 2,896,139.88 : x - Step 2: Convert to fraction form
5,343,450.12/7,374,050.73 = 2,896,139.88/x - Step 3: Cross multiply
5,343,450.12x = 7,374,050.73 × 2,896,139.88 - Step 4: Simplify right side
5,343,450.12x = 21,356,282,396,296.11 - Step 5: Solve for x
x = 21,356,282,396,296.11/5,343,450.12 - Step 6: Final answer
x = 3,996,721.58
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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.