Finding the Fourth Proportional to 11,312,915.92, 15,610,552.11 and 6,666,399.31
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Solution
The fourth proportional to 11,312,915.92, 15,610,552.11 and 6,666,399.31 is: 9,198,881.57
Step by Step Solution
- Step 1: Write the proportion equation
11,312,915.92 : 15,610,552.11 = 6,666,399.31 : x - Step 2: Convert to fraction form
11,312,915.92/15,610,552.11 = 6,666,399.31/x - Step 3: Cross multiply
11,312,915.92x = 15,610,552.11 × 6,666,399.31 - Step 4: Simplify right side
11,312,915.92x = 104,066,173,814,823.03 - Step 5: Solve for x
x = 104,066,173,814,823.03/11,312,915.92 - Step 6: Final answer
x = 9,198,881.57
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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.