Finding the Fourth Proportional to 5,255,438.40, 7,883,416.80 and 2,736,014.40
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Solution
The fourth proportional to 5,255,438.40, 7,883,416.80 and 2,736,014.40 is: 4,104,156.54
Step by Step Solution
- Step 1: Write the proportion equation
5,255,438.40 : 7,883,416.80 = 2,736,014.40 : x - Step 2: Convert to fraction form
5,255,438.40/7,883,416.80 = 2,736,014.40/x - Step 3: Cross multiply
5,255,438.40x = 7,883,416.80 × 2,736,014.40 - Step 4: Simplify right side
5,255,438.40x = 21,569,141,886,001.92 - Step 5: Solve for x
x = 21,569,141,886,001.92/5,255,438.40 - Step 6: Final answer
x = 4,104,156.54
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1.5x scale
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.