Finding the Fourth Proportional to 14,271,828.75, 19,695,133.80 and 7,745,456.66
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Solution
The fourth proportional to 14,271,828.75, 19,695,133.80 and 7,745,456.66 is: 10,688,735.68
Step by Step Solution
- Step 1: Write the proportion equation
14,271,828.75 : 19,695,133.80 = 7,745,456.66 : x - Step 2: Convert to fraction form
14,271,828.75/19,695,133.80 = 7,745,456.66/x - Step 3: Cross multiply
14,271,828.75x = 19,695,133.80 × 7,745,456.66 - Step 4: Simplify right side
14,271,828.75x = 152,547,805,162,325.44 - Step 5: Solve for x
x = 152,547,805,162,325.44/14,271,828.75 - Step 6: Final answer
x = 10,688,735.68
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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.