Finding the Fourth Proportional to 408,935,785.20, 613,403,677.80 and 344,365,703.70
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Solution
The fourth proportional to 408,935,785.20, 613,403,677.80 and 344,365,703.70 is: 516,548,555.55
Step by Step Solution
- Step 1: Write the proportion equation
408,935,785.20 : 613,403,677.80 = 344,365,703.70 : x - Step 2: Convert to fraction form
408,935,785.20/613,403,677.80 = 344,365,703.70/x - Step 3: Cross multiply
408,935,785.20x = 613,403,677.80 × 344,365,703.70 - Step 4: Simplify right side
408,935,785.20x = 211,235,189,157,765,056 - Step 5: Solve for x
x = 211,235,189,157,765,056/408,935,785.20 - Step 6: Final answer
x = 516,548,555.55
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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.