Finding the Fourth Proportional to 28,470,462.18, 42,706,874.34 and 8,275,704.18
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Solution
The fourth proportional to 28,470,462.18, 42,706,874.34 and 8,275,704.18 is: 12,413,899.58
Step by Step Solution
- Step 1: Write the proportion equation
28,470,462.18 : 42,706,874.34 = 8,275,704.18 : x - Step 2: Convert to fraction form
28,470,462.18/42,706,874.34 = 8,275,704.18/x - Step 3: Cross multiply
28,470,462.18x = 42,706,874.34 × 8,275,704.18 - Step 4: Simplify right side
28,470,462.18x = 353,429,458,490,272.75 - Step 5: Solve for x
x = 353,429,458,490,272.75/28,470,462.18 - Step 6: Final answer
x = 12,413,899.58
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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.