Finding the Fourth Proportional to 7,438,306.76, 10,264,517.82 and 4,130,810.98
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Solution
The fourth proportional to 7,438,306.76, 10,264,517.82 and 4,130,810.98 is: 5,700,327.28
Step by Step Solution
- Step 1: Write the proportion equation
7,438,306.76 : 10,264,517.82 = 4,130,810.98 : x - Step 2: Convert to fraction form
7,438,306.76/10,264,517.82 = 4,130,810.98/x - Step 3: Cross multiply
7,438,306.76x = 10,264,517.82 × 4,130,810.98 - Step 4: Simplify right side
7,438,306.76x = 42,400,782,915,261.66 - Step 5: Solve for x
x = 42,400,782,915,261.66/7,438,306.76 - Step 6: Final answer
x = 5,700,327.28
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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.