Finding the Fourth Proportional to 5,672,441.68, 7,830,860.16 and 4,380,381.52
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Solution
The fourth proportional to 5,672,441.68, 7,830,860.16 and 4,380,381.52 is: 6,047,158.71
Step by Step Solution
- Step 1: Write the proportion equation
5,672,441.68 : 7,830,860.16 = 4,380,381.52 : x - Step 2: Convert to fraction form
5,672,441.68/7,830,860.16 = 4,380,381.52/x - Step 3: Cross multiply
5,672,441.68x = 7,830,860.16 × 4,380,381.52 - Step 4: Simplify right side
5,672,441.68x = 34,302,155,130,568.24 - Step 5: Solve for x
x = 34,302,155,130,568.24/5,672,441.68 - Step 6: Final answer
x = 6,047,158.71
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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.