Finding the Fourth Proportional to 11,280,962.88, 15,567,729.12 and 6,124,317.12
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Solution
The fourth proportional to 11,280,962.88, 15,567,729.12 and 6,124,317.12 is: 8,451,557.81
Step by Step Solution
- Step 1: Write the proportion equation
11,280,962.88 : 15,567,729.12 = 6,124,317.12 : x - Step 2: Convert to fraction form
11,280,962.88/15,567,729.12 = 6,124,317.12/x - Step 3: Cross multiply
11,280,962.88x = 15,567,729.12 × 6,124,317.12 - Step 4: Simplify right side
11,280,962.88x = 95,341,709,969,138.53 - Step 5: Solve for x
x = 95,341,709,969,138.53/11,280,962.88 - Step 6: Final answer
x = 8,451,557.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.