Finding the Fourth Proportional to 12,127,783.68, 18,182,079.36 and 4,553,905.92
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Solution
The fourth proportional to 12,127,783.68, 18,182,079.36 and 4,553,905.92 is: 6,827,255.58
Step by Step Solution
- Step 1: Write the proportion equation
12,127,783.68 : 18,182,079.36 = 4,553,905.92 : x - Step 2: Convert to fraction form
12,127,783.68/18,182,079.36 = 4,553,905.92/x - Step 3: Cross multiply
12,127,783.68x = 18,182,079.36 × 4,553,905.92 - Step 4: Simplify right side
12,127,783.68x = 82,799,478,835,413.81 - Step 5: Solve for x
x = 82,799,478,835,413.81/12,127,783.68 - Step 6: Final answer
x = 6,827,255.58
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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.