Finding the Fourth Proportional to 9,578,827.14, 13,218,678 and 5,227,878.12
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Solution
The fourth proportional to 9,578,827.14, 13,218,678 and 5,227,878.12 is: 7,214,415.34
Step by Step Solution
- Step 1: Write the proportion equation
9,578,827.14 : 13,218,678 = 5,227,878.12 : x - Step 2: Convert to fraction form
9,578,827.14/13,218,678 = 5,227,878.12/x - Step 3: Cross multiply
9,578,827.14x = 13,218,678 × 5,227,878.12 - Step 4: Simplify right side
9,578,827.14x = 69,105,637,491,525.36 - Step 5: Solve for x
x = 69,105,637,491,525.36/9,578,827.14 - Step 6: Final answer
x = 7,214,415.34
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1.5x scale
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.