Finding the Fourth Proportional to 5,439,698.78, 8,156,739.08 and 1,601,021.70
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Solution
The fourth proportional to 5,439,698.78, 8,156,739.08 and 1,601,021.70 is: 2,400,705.78
Step by Step Solution
- Step 1: Write the proportion equation
5,439,698.78 : 8,156,739.08 = 1,601,021.70 : x - Step 2: Convert to fraction form
5,439,698.78/8,156,739.08 = 1,601,021.70/x - Step 3: Cross multiply
5,439,698.78x = 8,156,739.08 × 1,601,021.70 - Step 4: Simplify right side
5,439,698.78x = 13,059,116,272,320.59 - Step 5: Solve for x
x = 13,059,116,272,320.59/5,439,698.78 - Step 6: Final answer
x = 2,400,705.78
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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.