Finding the Fourth Proportional to 7,911,311.81, 11,863,041.96 and 2,519,259.71
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Solution
The fourth proportional to 7,911,311.81, 11,863,041.96 and 2,519,259.71 is: 3,777,639.45
Step by Step Solution
- Step 1: Write the proportion equation
7,911,311.81 : 11,863,041.96 = 2,519,259.71 : x - Step 2: Convert to fraction form
7,911,311.81/11,863,041.96 = 2,519,259.71/x - Step 3: Cross multiply
7,911,311.81x = 11,863,041.96 × 2,519,259.71 - Step 4: Simplify right side
7,911,311.81x = 29,886,083,588,552.23 - Step 5: Solve for x
x = 29,886,083,588,552.23/7,911,311.81 - Step 6: Final answer
x = 3,777,639.45
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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.