Finding the Fourth Proportional to 5,385,420.63, 7,431,904.58 and 2,938,024.26
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Solution
The fourth proportional to 5,385,420.63, 7,431,904.58 and 2,938,024.26 is: 4,054,486.63
Step by Step Solution
- Step 1: Write the proportion equation
5,385,420.63 : 7,431,904.58 = 2,938,024.26 : x - Step 2: Convert to fraction form
5,385,420.63/7,431,904.58 = 2,938,024.26/x - Step 3: Cross multiply
5,385,420.63x = 7,431,904.58 × 2,938,024.26 - Step 4: Simplify right side
5,385,420.63x = 21,835,115,939,354.99 - Step 5: Solve for x
x = 21,835,115,939,354.99/5,385,420.63 - Step 6: Final answer
x = 4,054,486.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.