Finding the Fourth Proportional to 5,389,669.76, 8,078,747.36 and 2,688,670.08
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Solution
The fourth proportional to 5,389,669.76, 8,078,747.36 and 2,688,670.08 is: 4,030,133.07
Step by Step Solution
- Step 1: Write the proportion equation
5,389,669.76 : 8,078,747.36 = 2,688,670.08 : x - Step 2: Convert to fraction form
5,389,669.76/8,078,747.36 = 2,688,670.08/x - Step 3: Cross multiply
5,389,669.76x = 8,078,747.36 × 2,688,670.08 - Step 4: Simplify right side
5,389,669.76x = 21,721,086,297,267.64 - Step 5: Solve for x
x = 21,721,086,297,267.64/5,389,669.76 - Step 6: Final answer
x = 4,030,133.07
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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.