Finding the Fourth Proportional to 13,528,162.56, 18,668,859.84 and 7,416,459.84
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Solution
The fourth proportional to 13,528,162.56, 18,668,859.84 and 7,416,459.84 is: 10,234,712.12
Step by Step Solution
- Step 1: Write the proportion equation
13,528,162.56 : 18,668,859.84 = 7,416,459.84 : x - Step 2: Convert to fraction form
13,528,162.56/18,668,859.84 = 7,416,459.84/x - Step 3: Cross multiply
13,528,162.56x = 18,668,859.84 × 7,416,459.84 - Step 4: Simplify right side
13,528,162.56x = 138,456,849,261,948.83 - Step 5: Solve for x
x = 138,456,849,261,948.83/13,528,162.56 - Step 6: Final answer
x = 10,234,712.12
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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.