Finding the Fourth Proportional to 13,366,440.12, 18,445,722.84 and 7,254,868.62
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Solution
The fourth proportional to 13,366,440.12, 18,445,722.84 and 7,254,868.62 is: 10,011,737.95
Step by Step Solution
- Step 1: Write the proportion equation
13,366,440.12 : 18,445,722.84 = 7,254,868.62 : x - Step 2: Convert to fraction form
13,366,440.12/18,445,722.84 = 7,254,868.62/x - Step 3: Cross multiply
13,366,440.12x = 18,445,722.84 × 7,254,868.62 - Step 4: Simplify right side
13,366,440.12x = 133,821,295,805,133.28 - Step 5: Solve for x
x = 133,821,295,805,133.28/13,366,440.12 - Step 6: Final answer
x = 10,011,737.95
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1.5x scale
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.