Finding the Fourth Proportional to 5,387,977.70, 8,081,966.55 and 1,398,889.70
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Solution
The fourth proportional to 5,387,977.70, 8,081,966.55 and 1,398,889.70 is: 2,098,334.55
Step by Step Solution
- Step 1: Write the proportion equation
5,387,977.70 : 8,081,966.55 = 1,398,889.70 : x - Step 2: Convert to fraction form
5,387,977.70/8,081,966.55 = 1,398,889.70/x - Step 3: Cross multiply
5,387,977.70x = 8,081,966.55 × 1,398,889.70 - Step 4: Simplify right side
5,387,977.70x = 11,305,779,762,539.54 - Step 5: Solve for x
x = 11,305,779,762,539.54/5,387,977.70 - Step 6: Final answer
x = 2,098,334.55
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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.