Finding the Fourth Proportional to 7,121,830.16, 10,682,758.60 and 1,730,485.14
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Solution
The fourth proportional to 7,121,830.16, 10,682,758.60 and 1,730,485.14 is: 2,595,730.96
Step by Step Solution
- Step 1: Write the proportion equation
7,121,830.16 : 10,682,758.60 = 1,730,485.14 : x - Step 2: Convert to fraction form
7,121,830.16/10,682,758.60 = 1,730,485.14/x - Step 3: Cross multiply
7,121,830.16x = 10,682,758.60 × 1,730,485.14 - Step 4: Simplify right side
7,121,830.16x = 18,486,355,011,507.20 - Step 5: Solve for x
x = 18,486,355,011,507.20/7,121,830.16 - Step 6: Final answer
x = 2,595,730.96
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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.