Finding the Fourth Proportional to 5,120,884.71, 7,679,638.18 and 1,708,230.87
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Solution
The fourth proportional to 5,120,884.71, 7,679,638.18 and 1,708,230.87 is: 2,561,782.92
Step by Step Solution
- Step 1: Write the proportion equation
5,120,884.71 : 7,679,638.18 = 1,708,230.87 : x - Step 2: Convert to fraction form
5,120,884.71/7,679,638.18 = 1,708,230.87/x - Step 3: Cross multiply
5,120,884.71x = 7,679,638.18 × 1,708,230.87 - Step 4: Simplify right side
5,120,884.71x = 13,118,595,009,506.62 - Step 5: Solve for x
x = 13,118,595,009,506.62/5,120,884.71 - Step 6: Final answer
x = 2,561,782.92
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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.