Finding the Fourth Proportional to 401,524,873.20, 602,287,309.80 and 299,488,201.20
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Solution
The fourth proportional to 401,524,873.20, 602,287,309.80 and 299,488,201.20 is: 449,232,301.80
Step by Step Solution
- Step 1: Write the proportion equation
401,524,873.20 : 602,287,309.80 = 299,488,201.20 : x - Step 2: Convert to fraction form
401,524,873.20/602,287,309.80 = 299,488,201.20/x - Step 3: Cross multiply
401,524,873.20x = 602,287,309.80 × 299,488,201.20 - Step 4: Simplify right side
401,524,873.20x = 180,377,943,017,589,120 - Step 5: Solve for x
x = 180,377,943,017,589,120/401,524,873.20 - Step 6: Final answer
x = 449,232,301.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.