Finding the Fourth Proportional to 12,745,228.30, 19,117,860.54 and 9,729,715.48
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Solution
The fourth proportional to 12,745,228.30, 19,117,860.54 and 9,729,715.48 is: 14,594,587.03
Step by Step Solution
- Step 1: Write the proportion equation
12,745,228.30 : 19,117,860.54 = 9,729,715.48 : x - Step 2: Convert to fraction form
12,745,228.30/19,117,860.54 = 9,729,715.48/x - Step 3: Cross multiply
12,745,228.30x = 19,117,860.54 × 9,729,715.48 - Step 4: Simplify right side
12,745,228.30x = 186,011,343,556,238.06 - Step 5: Solve for x
x = 186,011,343,556,238.06/12,745,228.30 - Step 6: Final answer
x = 14,594,587.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.