Finding the Fourth Proportional to 314,939,430.20, 472,409,145.30 and 283,194,687.80
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Solution
The fourth proportional to 314,939,430.20, 472,409,145.30 and 283,194,687.80 is: 424,792,031.70
Step by Step Solution
- Step 1: Write the proportion equation
314,939,430.20 : 472,409,145.30 = 283,194,687.80 : x - Step 2: Convert to fraction form
314,939,430.20/472,409,145.30 = 283,194,687.80/x - Step 3: Cross multiply
314,939,430.20x = 472,409,145.30 × 283,194,687.80 - Step 4: Simplify right side
314,939,430.20x = 133,783,760,417,098,352 - Step 5: Solve for x
x = 133,783,760,417,098,352/314,939,430.20 - Step 6: Final answer
x = 424,792,031.70
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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.