Finding the Fourth Proportional to 6,128,581.87, 8,457,170.11 and 3,513,210.94
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Solution
The fourth proportional to 6,128,581.87, 8,457,170.11 and 3,513,210.94 is: 4,848,074.67
Step by Step Solution
- Step 1: Write the proportion equation
6,128,581.87 : 8,457,170.11 = 3,513,210.94 : x - Step 2: Convert to fraction form
6,128,581.87/8,457,170.11 = 3,513,210.94/x - Step 3: Cross multiply
6,128,581.87x = 8,457,170.11 × 3,513,210.94 - Step 4: Simplify right side
6,128,581.87x = 29,711,822,553,681.44 - Step 5: Solve for x
x = 29,711,822,553,681.44/6,128,581.87 - Step 6: Final answer
x = 4,848,074.67
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.