Finding the Fourth Proportional to 75,316,983.20, 112,975,474.80 and 37,053,231.20
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Solution
The fourth proportional to 75,316,983.20, 112,975,474.80 and 37,053,231.20 is: 55,579,846.80
Step by Step Solution
- Step 1: Write the proportion equation
75,316,983.20 : 112,975,474.80 = 37,053,231.20 : x - Step 2: Convert to fraction form
75,316,983.20/112,975,474.80 = 37,053,231.20/x - Step 3: Cross multiply
75,316,983.20x = 112,975,474.80 × 37,053,231.20 - Step 4: Simplify right side
75,316,983.20x = 4,186,106,387,694,174 - Step 5: Solve for x
x = 4,186,106,387,694,174/75,316,983.20 - Step 6: Final answer
x = 55,579,846.80
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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.