Finding the Fourth Proportional to 284,756,493.37, 392,961,065.91 and 157,597,419.07
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Solution
The fourth proportional to 284,756,493.37, 392,961,065.91 and 157,597,419.07 is: 217,482,836.12
Step by Step Solution
- Step 1: Write the proportion equation
284,756,493.37 : 392,961,065.91 = 157,597,419.07 : x - Step 2: Convert to fraction form
284,756,493.37/392,961,065.91 = 157,597,419.07/x - Step 3: Cross multiply
284,756,493.37x = 392,961,065.91 × 157,597,419.07 - Step 4: Simplify right side
284,756,493.37x = 61,929,649,782,412,160 - Step 5: Solve for x
x = 61,929,649,782,412,160/284,756,493.37 - Step 6: Final answer
x = 217,482,836.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.