Finding the Fourth Proportional to 14,390,405.14, 19,858,810.97 and 7,864,035.68
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Solution
The fourth proportional to 14,390,405.14, 19,858,810.97 and 7,864,035.68 is: 10,852,397.59
Step by Step Solution
- Step 1: Write the proportion equation
14,390,405.14 : 19,858,810.97 = 7,864,035.68 : x - Step 2: Convert to fraction form
14,390,405.14/19,858,810.97 = 7,864,035.68/x - Step 3: Cross multiply
14,390,405.14x = 19,858,810.97 × 7,864,035.68 - Step 4: Simplify right side
14,390,405.14x = 156,170,398,030,455.41 - Step 5: Solve for x
x = 156,170,398,030,455.41/14,390,405.14 - Step 6: Final answer
x = 10,852,397.59
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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.