Finding the Fourth Proportional to 5,654,978.63, 7,803,246.08 and 3,173,630.18
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Solution
The fourth proportional to 5,654,978.63, 7,803,246.08 and 3,173,630.18 is: 4,379,259.21
Step by Step Solution
- Step 1: Write the proportion equation
5,654,978.63 : 7,803,246.08 = 3,173,630.18 : x - Step 2: Convert to fraction form
5,654,978.63/7,803,246.08 = 3,173,630.18/x - Step 3: Cross multiply
5,654,978.63x = 7,803,246.08 × 3,173,630.18 - Step 4: Simplify right side
5,654,978.63x = 24,764,617,206,570.31 - Step 5: Solve for x
x = 24,764,617,206,570.31/5,654,978.63 - Step 6: Final answer
x = 4,379,259.21
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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.