Finding the Fourth Proportional to 541,868,138.40, 747,798,586.64 and 303,717,724.49
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Solution
The fourth proportional to 541,868,138.40, 747,798,586.64 and 303,717,724.49 is: 419,141,981.25
Step by Step Solution
- Step 1: Write the proportion equation
541,868,138.40 : 747,798,586.64 = 303,717,724.49 : x - Step 2: Convert to fraction form
541,868,138.40/747,798,586.64 = 303,717,724.49/x - Step 3: Cross multiply
541,868,138.40x = 747,798,586.64 × 303,717,724.49 - Step 4: Simplify right side
541,868,138.40x = 227,119,685,105,881,344 - Step 5: Solve for x
x = 227,119,685,105,881,344/541,868,138.40 - Step 6: Final answer
x = 419,141,981.25
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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.