Finding the Fourth Proportional to 7,115,715.74, 9,819,673.62 and 3,852,529.58
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Solution
The fourth proportional to 7,115,715.74, 9,819,673.62 and 3,852,529.58 is: 5,316,483.19
Step by Step Solution
- Step 1: Write the proportion equation
7,115,715.74 : 9,819,673.62 = 3,852,529.58 : x - Step 2: Convert to fraction form
7,115,715.74/9,819,673.62 = 3,852,529.58/x - Step 3: Cross multiply
7,115,715.74x = 9,819,673.62 × 3,852,529.58 - Step 4: Simplify right side
7,115,715.74x = 37,830,583,086,995.68 - Step 5: Solve for x
x = 37,830,583,086,995.68/7,115,715.74 - Step 6: Final answer
x = 5,316,483.19
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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.