Finding the Fourth Proportional to 19,154,610.12, 28,706,963.94 and 7,781,763
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Solution
The fourth proportional to 19,154,610.12, 28,706,963.94 and 7,781,763 is: 11,662,507.79
Step by Step Solution
- Step 1: Write the proportion equation
19,154,610.12 : 28,706,963.94 = 7,781,763 : x - Step 2: Convert to fraction form
19,154,610.12/28,706,963.94 = 7,781,763/x - Step 3: Cross multiply
19,154,610.12x = 28,706,963.94 × 7,781,763 - Step 4: Simplify right side
19,154,610.12x = 223,390,789,830,626.22 - Step 5: Solve for x
x = 223,390,789,830,626.22/19,154,610.12 - Step 6: Final answer
x = 11,662,507.79
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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.