Finding the Fourth Proportional to 661,424,944.20, 912,759,179.58 and 364,060,828.68
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Solution
The fourth proportional to 661,424,944.20, 912,759,179.58 and 364,060,828.68 is: 502,399,956.66
Step by Step Solution
- Step 1: Write the proportion equation
661,424,944.20 : 912,759,179.58 = 364,060,828.68 : x - Step 2: Convert to fraction form
661,424,944.20/912,759,179.58 = 364,060,828.68/x - Step 3: Cross multiply
661,424,944.20x = 912,759,179.58 × 364,060,828.68 - Step 4: Simplify right side
661,424,944.20x = 332,299,863,303,171,776 - Step 5: Solve for x
x = 332,299,863,303,171,776/661,424,944.20 - Step 6: Final answer
x = 502,399,956.66
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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.