Finding the Fourth Proportional to 12,743,649.19, 19,103,995.68 and 4,650,946.48
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Solution
The fourth proportional to 12,743,649.19, 19,103,995.68 and 4,650,946.48 is: 6,972,230.65
Step by Step Solution
- Step 1: Write the proportion equation
12,743,649.19 : 19,103,995.68 = 4,650,946.48 : x - Step 2: Convert to fraction form
12,743,649.19/19,103,995.68 = 4,650,946.48/x - Step 3: Cross multiply
12,743,649.19x = 19,103,995.68 × 4,650,946.48 - Step 4: Simplify right side
12,743,649.19x = 88,851,661,461,831.22 - Step 5: Solve for x
x = 88,851,661,461,831.22/12,743,649.19 - Step 6: Final answer
x = 6,972,230.65
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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.