Finding the Fourth Proportional to 5,621,329.40, 8,430,732.12 and 2,585,779.88
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Solution
The fourth proportional to 5,621,329.40, 8,430,732.12 and 2,585,779.88 is: 3,878,089.32
Step by Step Solution
- Step 1: Write the proportion equation
5,621,329.40 : 8,430,732.12 = 2,585,779.88 : x - Step 2: Convert to fraction form
5,621,329.40/8,430,732.12 = 2,585,779.88/x - Step 3: Cross multiply
5,621,329.40x = 8,430,732.12 × 2,585,779.88 - Step 4: Simplify right side
5,621,329.40x = 21,800,017,489,565.74 - Step 5: Solve for x
x = 21,800,017,489,565.74/5,621,329.40 - Step 6: Final answer
x = 3,878,089.32
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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.