Finding the Fourth Proportional to 19,188,395.92, 26,479,989.12 and 10,929,227.68
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Solution
The fourth proportional to 19,188,395.92, 26,479,989.12 and 10,929,227.68 is: 15,082,335.76
Step by Step Solution
- Step 1: Write the proportion equation
19,188,395.92 : 26,479,989.12 = 10,929,227.68 : x - Step 2: Convert to fraction form
19,188,395.92/26,479,989.12 = 10,929,227.68/x - Step 3: Cross multiply
19,188,395.92x = 26,479,989.12 × 10,929,227.68 - Step 4: Simplify right side
19,188,395.92x = 289,405,830,056,402.88 - Step 5: Solve for x
x = 289,405,830,056,402.88/19,188,395.92 - Step 6: Final answer
x = 15,082,335.76
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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.