Finding the Fourth Proportional to 8,417,918.79, 11,615,861.05 and 6,213,954.15
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Solution
The fourth proportional to 8,417,918.79, 11,615,861.05 and 6,213,954.15 is: 8,574,616.81
Step by Step Solution
- Step 1: Write the proportion equation
8,417,918.79 : 11,615,861.05 = 6,213,954.15 : x - Step 2: Convert to fraction form
8,417,918.79/11,615,861.05 = 6,213,954.15/x - Step 3: Cross multiply
8,417,918.79x = 11,615,861.05 × 6,213,954.15 - Step 4: Simplify right side
8,417,918.79x = 72,180,427,977,470.86 - Step 5: Solve for x
x = 72,180,427,977,470.86/8,417,918.79 - Step 6: Final answer
x = 8,574,616.81
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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.