Finding the Fourth Proportional to 318,211,363.35, 439,128,506.10 and 177,080,168.00
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Solution
The fourth proportional to 318,211,363.35, 439,128,506.10 and 177,080,168.00 is: 244,368,864.81
Step by Step Solution
- Step 1: Write the proportion equation
318,211,363.35 : 439,128,506.10 = 177,080,168.00 : x - Step 2: Convert to fraction form
318,211,363.35/439,128,506.10 = 177,080,168.00/x - Step 3: Cross multiply
318,211,363.35x = 439,128,506.10 × 177,080,168.00 - Step 4: Simplify right side
318,211,363.35x = 77,760,949,632,069,648 - Step 5: Solve for x
x = 77,760,949,632,069,648/318,211,363.35 - Step 6: Final answer
x = 244,368,864.81
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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.