Finding the Fourth Proportional to 490,733,908.72, 677,201,895.14 and 270,717,276.40
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Solution
The fourth proportional to 490,733,908.72, 677,201,895.14 and 270,717,276.40 is: 373,583,828.97
Step by Step Solution
- Step 1: Write the proportion equation
490,733,908.72 : 677,201,895.14 = 270,717,276.40 : x - Step 2: Convert to fraction form
490,733,908.72/677,201,895.14 = 270,717,276.40/x - Step 3: Cross multiply
490,733,908.72x = 677,201,895.14 × 270,717,276.40 - Step 4: Simplify right side
490,733,908.72x = 183,330,252,625,219,168 - Step 5: Solve for x
x = 183,330,252,625,219,168/490,733,908.72 - Step 6: Final answer
x = 373,583,828.97
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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.