Finding the Fourth Proportional to 9,153,115.19, 12,630,464.04 and 5,431,304.75
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Solution
The fourth proportional to 9,153,115.19, 12,630,464.04 and 5,431,304.75 is: 7,494,705.12
Step by Step Solution
- Step 1: Write the proportion equation
9,153,115.19 : 12,630,464.04 = 5,431,304.75 : x - Step 2: Convert to fraction form
9,153,115.19/12,630,464.04 = 5,431,304.75/x - Step 3: Cross multiply
9,153,115.19x = 12,630,464.04 × 5,431,304.75 - Step 4: Simplify right side
9,153,115.19x = 68,599,899,272,003.87 - Step 5: Solve for x
x = 68,599,899,272,003.87/9,153,115.19 - Step 6: Final answer
x = 7,494,705.12
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1.5x scale
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.