Finding the Fourth Proportional to 10,658,045.40, 15,977,736.90 and 6,399,907.80
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Solution
The fourth proportional to 10,658,045.40, 15,977,736.90 and 6,399,907.80 is: 9,594,258.53
Step by Step Solution
- Step 1: Write the proportion equation
10,658,045.40 : 15,977,736.90 = 6,399,907.80 : x - Step 2: Convert to fraction form
10,658,045.40/15,977,736.90 = 6,399,907.80/x - Step 3: Cross multiply
10,658,045.40x = 15,977,736.90 × 6,399,907.80 - Step 4: Simplify right side
10,658,045.40x = 102,256,043,012,657.81 - Step 5: Solve for x
x = 102,256,043,012,657.81/10,658,045.40 - Step 6: Final answer
x = 9,594,258.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.