Finding the Fourth Proportional to 8,417,917.79, 11,615,859.68 and 6,213,953.15
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Solution
The fourth proportional to 8,417,917.79, 11,615,859.68 and 6,213,953.15 is: 8,574,615.43
Step by Step Solution
- Step 1: Write the proportion equation
8,417,917.79 : 11,615,859.68 = 6,213,953.15 : x - Step 2: Convert to fraction form
8,417,917.79/11,615,859.68 = 6,213,953.15/x - Step 3: Cross multiply
8,417,917.79x = 11,615,859.68 × 6,213,953.15 - Step 4: Simplify right side
8,417,917.79x = 72,180,407,759,344.92 - Step 5: Solve for x
x = 72,180,407,759,344.92/8,417,917.79 - Step 6: Final answer
x = 8,574,615.43
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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.