Finding the Fourth Proportional to 10,347,620.88, 14,279,730 and 5,637,994.08
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Solution
The fourth proportional to 10,347,620.88, 14,279,730 and 5,637,994.08 is: 7,780,439.01
Step by Step Solution
- Step 1: Write the proportion equation
10,347,620.88 : 14,279,730 = 5,637,994.08 : x - Step 2: Convert to fraction form
10,347,620.88/14,279,730 = 5,637,994.08/x - Step 3: Cross multiply
10,347,620.88x = 14,279,730 × 5,637,994.08 - Step 4: Simplify right side
10,347,620.88x = 80,509,033,203,998.41 - Step 5: Solve for x
x = 80,509,033,203,998.41/10,347,620.88 - Step 6: Final answer
x = 7,780,439.01
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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.