Finding the Fourth Proportional to 7,175,430.04, 9,902,170.74 and 3,912,218.14
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Solution
The fourth proportional to 7,175,430.04, 9,902,170.74 and 3,912,218.14 is: 5,398,903.17
Step by Step Solution
- Step 1: Write the proportion equation
7,175,430.04 : 9,902,170.74 = 3,912,218.14 : x - Step 2: Convert to fraction form
7,175,430.04/9,902,170.74 = 3,912,218.14/x - Step 3: Cross multiply
7,175,430.04x = 9,902,170.74 × 3,912,218.14 - Step 4: Simplify right side
7,175,430.04x = 38,739,451,994,405.23 - Step 5: Solve for x
x = 38,739,451,994,405.23/7,175,430.04 - Step 6: Final answer
x = 5,398,903.17
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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.