Finding the Fourth Proportional to 31,943,132.80, 47,851,713.60 and 19,125,563.20
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Solution
The fourth proportional to 31,943,132.80, 47,851,713.60 and 19,125,563.20 is: 28,650,632.94
Step by Step Solution
- Step 1: Write the proportion equation
31,943,132.80 : 47,851,713.60 = 19,125,563.20 : x - Step 2: Convert to fraction form
31,943,132.80/47,851,713.60 = 19,125,563.20/x - Step 3: Cross multiply
31,943,132.80x = 47,851,713.60 × 19,125,563.20 - Step 4: Simplify right side
31,943,132.80x = 915,190,972,685,099.50 - Step 5: Solve for x
x = 915,190,972,685,099.50/31,943,132.80 - Step 6: Final answer
x = 28,650,632.94
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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.