Finding the Fourth Proportional to 20,970,013.49, 31,440,396.62 and 9,292,033.46
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Solution
The fourth proportional to 20,970,013.49, 31,440,396.62 and 9,292,033.46 is: 13,931,570.32
Step by Step Solution
- Step 1: Write the proportion equation
20,970,013.49 : 31,440,396.62 = 9,292,033.46 : x - Step 2: Convert to fraction form
20,970,013.49/31,440,396.62 = 9,292,033.46/x - Step 3: Cross multiply
20,970,013.49x = 31,440,396.62 × 9,292,033.46 - Step 4: Simplify right side
20,970,013.49x = 292,145,217,428,011.38 - Step 5: Solve for x
x = 292,145,217,428,011.38/20,970,013.49 - Step 6: Final answer
x = 13,931,570.32
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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.