Finding the Fourth Proportional to 10,128,656.43, 13,977,544.14 and 5,482,440.54
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Solution
The fourth proportional to 10,128,656.43, 13,977,544.14 and 5,482,440.54 is: 7,565,767.01
Step by Step Solution
- Step 1: Write the proportion equation
10,128,656.43 : 13,977,544.14 = 5,482,440.54 : x - Step 2: Convert to fraction form
10,128,656.43/13,977,544.14 = 5,482,440.54/x - Step 3: Cross multiply
10,128,656.43x = 13,977,544.14 × 5,482,440.54 - Step 4: Simplify right side
10,128,656.43x = 76,631,054,642,775.44 - Step 5: Solve for x
x = 76,631,054,642,775.44/10,128,656.43 - Step 6: Final answer
x = 7,565,767.01
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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.