Finding the Fourth Proportional to 15,896,431.68, 21,939,938.54 and 9,369,680.08
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Solution
The fourth proportional to 15,896,431.68, 21,939,938.54 and 9,369,680.08 is: 12,931,845.92
Step by Step Solution
- Step 1: Write the proportion equation
15,896,431.68 : 21,939,938.54 = 9,369,680.08 : x - Step 2: Convert to fraction form
15,896,431.68/21,939,938.54 = 9,369,680.08/x - Step 3: Cross multiply
15,896,431.68x = 21,939,938.54 × 9,369,680.08 - Step 4: Simplify right side
15,896,431.68x = 205,570,205,094,662.28 - Step 5: Solve for x
x = 205,570,205,094,662.28/15,896,431.68 - Step 6: Final answer
x = 12,931,845.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.