Finding the Fourth Proportional to 646,821,668.10, 970,232,502.15 and 355,576,253.70
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Solution
The fourth proportional to 646,821,668.10, 970,232,502.15 and 355,576,253.70 is: 533,364,380.55
Step by Step Solution
- Step 1: Write the proportion equation
646,821,668.10 : 970,232,502.15 = 355,576,253.70 : x - Step 2: Convert to fraction form
646,821,668.10/970,232,502.15 = 355,576,253.70/x - Step 3: Cross multiply
646,821,668.10x = 970,232,502.15 × 355,576,253.70 - Step 4: Simplify right side
646,821,668.10x = 344,991,638,332,474,176 - Step 5: Solve for x
x = 344,991,638,332,474,176/646,821,668.10 - Step 6: Final answer
x = 533,364,380.55
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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.