Finding the Fourth Proportional to 15,630,261.48, 21,570,073.20 and 9,104,311.44
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Solution
The fourth proportional to 15,630,261.48, 21,570,073.20 and 9,104,311.44 is: 12,564,131.73
Step by Step Solution
- Step 1: Write the proportion equation
15,630,261.48 : 21,570,073.20 = 9,104,311.44 : x - Step 2: Convert to fraction form
15,630,261.48/21,570,073.20 = 9,104,311.44/x - Step 3: Cross multiply
15,630,261.48x = 21,570,073.20 × 9,104,311.44 - Step 4: Simplify right side
15,630,261.48x = 196,380,664,196,397.38 - Step 5: Solve for x
x = 196,380,664,196,397.38/15,630,261.48 - Step 6: Final answer
x = 12,564,131.73
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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.