Finding the Fourth Proportional to 5,430,460.86, 8,145,684.81 and 1,386,952.20
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Solution
The fourth proportional to 5,430,460.86, 8,145,684.81 and 1,386,952.20 is: 2,080,426.64
Step by Step Solution
- Step 1: Write the proportion equation
5,430,460.86 : 8,145,684.81 = 1,386,952.20 : x - Step 2: Convert to fraction form
5,430,460.86/8,145,684.81 = 1,386,952.20/x - Step 3: Cross multiply
5,430,460.86x = 8,145,684.81 × 1,386,952.20 - Step 4: Simplify right side
5,430,460.86x = 11,297,675,467,736.08 - Step 5: Solve for x
x = 11,297,675,467,736.08/5,430,460.86 - Step 6: Final answer
x = 2,080,426.64
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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.