Finding the Fourth Proportional to 5,430,905.69, 8,153,478.12 and 3,641,794.80
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Solution
The fourth proportional to 5,430,905.69, 8,153,478.12 and 3,641,794.80 is: 5,467,466.38
Step by Step Solution
- Step 1: Write the proportion equation
5,430,905.69 : 8,153,478.12 = 3,641,794.80 : x - Step 2: Convert to fraction form
5,430,905.69/8,153,478.12 = 3,641,794.80/x - Step 3: Cross multiply
5,430,905.69x = 8,153,478.12 × 3,641,794.80 - Step 4: Simplify right side
5,430,905.69x = 29,693,294,219,329.77 - Step 5: Solve for x
x = 29,693,294,219,329.77/5,430,905.69 - Step 6: Final answer
x = 5,467,466.38
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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.