Finding the Fourth Proportional to 369,207,615.99, 509,663,391.45 and 230,047,132.93
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Solution
The fourth proportional to 369,207,615.99, 509,663,391.45 and 230,047,132.93 is: 317,562,793.63
Step by Step Solution
- Step 1: Write the proportion equation
369,207,615.99 : 509,663,391.45 = 230,047,132.93 : x - Step 2: Convert to fraction form
369,207,615.99/509,663,391.45 = 230,047,132.93/x - Step 3: Cross multiply
369,207,615.99x = 509,663,391.45 × 230,047,132.93 - Step 4: Simplify right side
369,207,615.99x = 117,246,601,962,452,784 - Step 5: Solve for x
x = 117,246,601,962,452,784/369,207,615.99 - Step 6: Final answer
x = 317,562,793.63
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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.