Finding the Fourth Proportional to 9,320,907.98, 12,862,592.65 and 5,190,937.99
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Solution
The fourth proportional to 9,320,907.98, 12,862,592.65 and 5,190,937.99 is: 7,163,349.43
Step by Step Solution
- Step 1: Write the proportion equation
9,320,907.98 : 12,862,592.65 = 5,190,937.99 : x - Step 2: Convert to fraction form
9,320,907.98/12,862,592.65 = 5,190,937.99/x - Step 3: Cross multiply
9,320,907.98x = 12,862,592.65 × 5,190,937.99 - Step 4: Simplify right side
9,320,907.98x = 66,768,920,836,779.78 - Step 5: Solve for x
x = 66,768,920,836,779.78/9,320,907.98 - Step 6: Final answer
x = 7,163,349.43
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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.