Finding the Fourth Proportional to 205,765,911.08, 283,827,794.66 and 122,074,790.76
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Solution
The fourth proportional to 205,765,911.08, 283,827,794.66 and 122,074,790.76 is: 168,386,582.90
Step by Step Solution
- Step 1: Write the proportion equation
205,765,911.08 : 283,827,794.66 = 122,074,790.76 : x - Step 2: Convert to fraction form
205,765,911.08/283,827,794.66 = 122,074,790.76/x - Step 3: Cross multiply
205,765,911.08x = 283,827,794.66 × 122,074,790.76 - Step 4: Simplify right side
205,765,911.08x = 34,648,218,644,991,752 - Step 5: Solve for x
x = 34,648,218,644,991,752/205,765,911.08 - Step 6: Final answer
x = 168,386,582.90
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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.