Finding the Fourth Proportional to 6,247,685.90, 8,621,742.80 and 3,494,366.76
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Solution
The fourth proportional to 6,247,685.90, 8,621,742.80 and 3,494,366.76 is: 4,822,190.48
Step by Step Solution
- Step 1: Write the proportion equation
6,247,685.90 : 8,621,742.80 = 3,494,366.76 : x - Step 2: Convert to fraction form
6,247,685.90/8,621,742.80 = 3,494,366.76/x - Step 3: Cross multiply
6,247,685.90x = 8,621,742.80 × 3,494,366.76 - Step 4: Simplify right side
6,247,685.90x = 30,127,531,462,325.24 - Step 5: Solve for x
x = 30,127,531,462,325.24/6,247,685.90 - Step 6: Final answer
x = 4,822,190.48
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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.