Finding the Fourth Proportional to 6,471,213.20, 9,706,819.80 and 6,387,232.40
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Solution
The fourth proportional to 6,471,213.20, 9,706,819.80 and 6,387,232.40 is: 9,580,848.60
Step by Step Solution
- Step 1: Write the proportion equation
6,471,213.20 : 9,706,819.80 = 6,387,232.40 : x - Step 2: Convert to fraction form
6,471,213.20/9,706,819.80 = 6,387,232.40/x - Step 3: Cross multiply
6,471,213.20x = 9,706,819.80 × 6,387,232.40 - Step 4: Simplify right side
6,471,213.20x = 61,999,713,927,521.53 - Step 5: Solve for x
x = 61,999,713,927,521.53/6,471,213.20 - Step 6: Final answer
x = 9,580,848.60
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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.