Finding the Fourth Proportional to 20,725,969.40, 31,046,963.70 and 11,740,023.80
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Solution
The fourth proportional to 20,725,969.40, 31,046,963.70 and 11,740,023.80 is: 17,586,250.65
Step by Step Solution
- Step 1: Write the proportion equation
20,725,969.40 : 31,046,963.70 = 11,740,023.80 : x - Step 2: Convert to fraction form
20,725,969.40/31,046,963.70 = 11,740,023.80/x - Step 3: Cross multiply
20,725,969.40x = 31,046,963.70 × 11,740,023.80 - Step 4: Simplify right side
20,725,969.40x = 364,492,092,755,736.06 - Step 5: Solve for x
x = 364,492,092,755,736.06/20,725,969.40 - Step 6: Final answer
x = 17,586,250.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.