Finding the Fourth Proportional to 18,729,564.30, 28,087,348.05 and 7,367,661.90
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Solution
The fourth proportional to 18,729,564.30, 28,087,348.05 and 7,367,661.90 is: 11,048,739.88
Step by Step Solution
- Step 1: Write the proportion equation
18,729,564.30 : 28,087,348.05 = 7,367,661.90 : x - Step 2: Convert to fraction form
18,729,564.30/28,087,348.05 = 7,367,661.90/x - Step 3: Cross multiply
18,729,564.30x = 28,087,348.05 × 7,367,661.90 - Step 4: Simplify right side
18,729,564.30x = 206,938,084,100,024.31 - Step 5: Solve for x
x = 206,938,084,100,024.31/18,729,564.30 - Step 6: Final answer
x = 11,048,739.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.