Finding the Fourth Proportional to 328,615,799.04, 453,502,028.16 and 187,509,991.68
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Solution
The fourth proportional to 328,615,799.04, 453,502,028.16 and 187,509,991.68 is: 258,770,764.45
Step by Step Solution
- Step 1: Write the proportion equation
328,615,799.04 : 453,502,028.16 = 187,509,991.68 : x - Step 2: Convert to fraction form
328,615,799.04/453,502,028.16 = 187,509,991.68/x - Step 3: Cross multiply
328,615,799.04x = 453,502,028.16 × 187,509,991.68 - Step 4: Simplify right side
328,615,799.04x = 85,036,161,527,144,736 - Step 5: Solve for x
x = 85,036,161,527,144,736/328,615,799.04 - Step 6: Final answer
x = 258,770,764.45
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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.