Finding the Fourth Proportional to 7,115,419.84, 9,819,282.36 and 3,852,234.40
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Solution
The fourth proportional to 7,115,419.84, 9,819,282.36 and 3,852,234.40 is: 5,316,085.09
Step by Step Solution
- Step 1: Write the proportion equation
7,115,419.84 : 9,819,282.36 = 3,852,234.40 : x - Step 2: Convert to fraction form
7,115,419.84/9,819,282.36 = 3,852,234.40/x - Step 3: Cross multiply
7,115,419.84x = 9,819,282.36 × 3,852,234.40 - Step 4: Simplify right side
7,115,419.84x = 37,826,177,290,505.18 - Step 5: Solve for x
x = 37,826,177,290,505.18/7,115,419.84 - Step 6: Final answer
x = 5,316,085.09
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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.