Finding the Fourth Proportional to 258,655,412.70, 387,983,119.05 and 233,146,244.70
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Solution
The fourth proportional to 258,655,412.70, 387,983,119.05 and 233,146,244.70 is: 349,719,367.05
Step by Step Solution
- Step 1: Write the proportion equation
258,655,412.70 : 387,983,119.05 = 233,146,244.70 : x - Step 2: Convert to fraction form
258,655,412.70/387,983,119.05 = 233,146,244.70/x - Step 3: Cross multiply
258,655,412.70x = 387,983,119.05 × 233,146,244.70 - Step 4: Simplify right side
258,655,412.70x = 90,456,807,213,500,528 - Step 5: Solve for x
x = 90,456,807,213,500,528/258,655,412.70 - Step 6: Final answer
x = 349,719,367.05
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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.