Finding the Fourth Proportional to 8,330,693.49, 12,507,604.88 and 4,290,070.05
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Solution
The fourth proportional to 8,330,693.49, 12,507,604.88 and 4,290,070.05 is: 6,441,060.54
Step by Step Solution
- Step 1: Write the proportion equation
8,330,693.49 : 12,507,604.88 = 4,290,070.05 : x - Step 2: Convert to fraction form
8,330,693.49/12,507,604.88 = 4,290,070.05/x - Step 3: Cross multiply
8,330,693.49x = 12,507,604.88 × 4,290,070.05 - Step 4: Simplify right side
8,330,693.49x = 53,658,501,071,471.49 - Step 5: Solve for x
x = 53,658,501,071,471.49/8,330,693.49 - Step 6: Final answer
x = 6,441,060.54
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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.