Finding the Fourth Proportional to 527,721,749.60, 728,255,732.11 and 289,568,497.79
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Solution
The fourth proportional to 527,721,749.60, 728,255,732.11 and 289,568,497.79 is: 399,604,372.03
Step by Step Solution
- Step 1: Write the proportion equation
527,721,749.60 : 728,255,732.11 = 289,568,497.79 : x - Step 2: Convert to fraction form
527,721,749.60/728,255,732.11 = 289,568,497.79/x - Step 3: Cross multiply
527,721,749.60x = 728,255,732.11 × 289,568,497.79 - Step 4: Simplify right side
527,721,749.60x = 210,879,918,355,146,080 - Step 5: Solve for x
x = 210,879,918,355,146,080/527,721,749.60 - Step 6: Final answer
x = 399,604,372.03
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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.