Finding the Fourth Proportional to 7,240,639.80, 10,860,959.70 and 2,192,201.40
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Solution
The fourth proportional to 7,240,639.80, 10,860,959.70 and 2,192,201.40 is: 3,288,302.10
Step by Step Solution
- Step 1: Write the proportion equation
7,240,639.80 : 10,860,959.70 = 2,192,201.40 : x - Step 2: Convert to fraction form
7,240,639.80/10,860,959.70 = 2,192,201.40/x - Step 3: Cross multiply
7,240,639.80x = 10,860,959.70 × 2,192,201.40 - Step 4: Simplify right side
7,240,639.80x = 23,809,411,059,683.58 - Step 5: Solve for x
x = 23,809,411,059,683.58/7,240,639.80 - Step 6: Final answer
x = 3,288,302.10
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1.5x scale
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.