Finding the Fourth Proportional to 14,203,648.40, 19,601,121.30 and 7,677,261.32
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Solution
The fourth proportional to 14,203,648.40, 19,601,121.30 and 7,677,261.32 is: 10,594,667.38
Step by Step Solution
- Step 1: Write the proportion equation
14,203,648.40 : 19,601,121.30 = 7,677,261.32 : x - Step 2: Convert to fraction form
14,203,648.40/19,601,121.30 = 7,677,261.32/x - Step 3: Cross multiply
14,203,648.40x = 19,601,121.30 × 7,677,261.32 - Step 4: Simplify right side
14,203,648.40x = 150,482,930,385,118.12 - Step 5: Solve for x
x = 150,482,930,385,118.12/14,203,648.40 - Step 6: Final answer
x = 10,594,667.38
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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.