Finding the Fourth Proportional to 472,403,906.85, 708,605,860.28 and 149,287,778.85
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Solution
The fourth proportional to 472,403,906.85, 708,605,860.28 and 149,287,778.85 is: 223,931,668.28
Step by Step Solution
- Step 1: Write the proportion equation
472,403,906.85 : 708,605,860.28 = 149,287,778.85 : x - Step 2: Convert to fraction form
472,403,906.85/708,605,860.28 = 149,287,778.85/x - Step 3: Cross multiply
472,403,906.85x = 708,605,860.28 × 149,287,778.85 - Step 4: Simplify right side
472,403,906.85x = 105,786,194,960,548,192 - Step 5: Solve for x
x = 105,786,194,960,548,192/472,403,906.85 - Step 6: Final answer
x = 223,931,668.28
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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.