Finding the Fourth Proportional to 6,645,659.70, 9,968,489.55 and 3,286,427.70
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Solution
The fourth proportional to 6,645,659.70, 9,968,489.55 and 3,286,427.70 is: 4,929,641.55
Step by Step Solution
- Step 1: Write the proportion equation
6,645,659.70 : 9,968,489.55 = 3,286,427.70 : x - Step 2: Convert to fraction form
6,645,659.70/9,968,489.55 = 3,286,427.70/x - Step 3: Cross multiply
6,645,659.70x = 9,968,489.55 × 3,286,427.70 - Step 4: Simplify right side
6,645,659.70x = 32,760,720,184,280.54 - Step 5: Solve for x
x = 32,760,720,184,280.54/6,645,659.70 - Step 6: Final answer
x = 4,929,641.55
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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.