Finding the Fourth Proportional to 189,256,873.05, 283,905,244.08 and 78,579,976.41
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Solution
The fourth proportional to 189,256,873.05, 283,905,244.08 and 78,579,976.41 is: 117,878,241.48
Step by Step Solution
- Step 1: Write the proportion equation
189,256,873.05 : 283,905,244.08 = 78,579,976.41 : x - Step 2: Convert to fraction form
189,256,873.05/283,905,244.08 = 78,579,976.41/x - Step 3: Cross multiply
189,256,873.05x = 283,905,244.08 × 78,579,976.41 - Step 4: Simplify right side
189,256,873.05x = 22,309,267,382,481,688 - Step 5: Solve for x
x = 22,309,267,382,481,688/189,256,873.05 - Step 6: Final answer
x = 117,878,241.48
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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.