Finding the Fourth Proportional to 21,335,031.67, 31,989,588.16 and 8,365,644.06
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Solution
The fourth proportional to 21,335,031.67, 31,989,588.16 and 8,365,644.06 is: 12,543,384.62
Step by Step Solution
- Step 1: Write the proportion equation
21,335,031.67 : 31,989,588.16 = 8,365,644.06 : x - Step 2: Convert to fraction form
21,335,031.67/31,989,588.16 = 8,365,644.06/x - Step 3: Cross multiply
21,335,031.67x = 31,989,588.16 × 8,365,644.06 - Step 4: Simplify right side
21,335,031.67x = 267,613,508,151,636.19 - Step 5: Solve for x
x = 267,613,508,151,636.19/21,335,031.67 - Step 6: Final answer
x = 12,543,384.62
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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.