Finding the Fourth Proportional to 6,395,905.80, 9,578,112.30 and 4,254,395.40
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Solution
The fourth proportional to 6,395,905.80, 9,578,112.30 and 4,254,395.40 is: 6,371,118.99
Step by Step Solution
- Step 1: Write the proportion equation
6,395,905.80 : 9,578,112.30 = 4,254,395.40 : x - Step 2: Convert to fraction form
6,395,905.80/9,578,112.30 = 4,254,395.40/x - Step 3: Cross multiply
6,395,905.80x = 9,578,112.30 × 4,254,395.40 - Step 4: Simplify right side
6,395,905.80x = 40,749,076,909,803.43 - Step 5: Solve for x
x = 40,749,076,909,803.43/6,395,905.80 - Step 6: Final answer
x = 6,371,118.99
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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.