Finding the Fourth Proportional to 6,885,643.80, 10,328,465.70 and 3,106,507.80
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Solution
The fourth proportional to 6,885,643.80, 10,328,465.70 and 3,106,507.80 is: 4,659,761.70
Step by Step Solution
- Step 1: Write the proportion equation
6,885,643.80 : 10,328,465.70 = 3,106,507.80 : x - Step 2: Convert to fraction form
6,885,643.80/10,328,465.70 = 3,106,507.80/x - Step 3: Cross multiply
6,885,643.80x = 10,328,465.70 × 3,106,507.80 - Step 4: Simplify right side
6,885,643.80x = 32,085,459,259,082.46 - Step 5: Solve for x
x = 32,085,459,259,082.46/6,885,643.80 - Step 6: Final answer
x = 4,659,761.70
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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.