Finding the Fourth Proportional to 18,803,407.03, 28,211,420.04 and 7,289,249.94
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Solution
The fourth proportional to 18,803,407.03, 28,211,420.04 and 7,289,249.94 is: 10,936,320.82
Step by Step Solution
- Step 1: Write the proportion equation
18,803,407.03 : 28,211,420.04 = 7,289,249.94 : x - Step 2: Convert to fraction form
18,803,407.03/28,211,420.04 = 7,289,249.94/x - Step 3: Cross multiply
18,803,407.03x = 28,211,420.04 × 7,289,249.94 - Step 4: Simplify right side
18,803,407.03x = 205,640,091,806,550.12 - Step 5: Solve for x
x = 205,640,091,806,550.12/18,803,407.03 - Step 6: Final answer
x = 10,936,320.82
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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.