Finding the Fourth Proportional to 931,553,503.19, 1,397,182,172.99 and 309,717,013.49
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Solution
The fourth proportional to 931,553,503.19, 1,397,182,172.99 and 309,717,013.49 is: 464,526,286.93
Step by Step Solution
- Step 1: Write the proportion equation
931,553,503.19 : 1,397,182,172.99 = 309,717,013.49 : x - Step 2: Convert to fraction form
931,553,503.19/1,397,182,172.99 = 309,717,013.49/x - Step 3: Cross multiply
931,553,503.19x = 1,397,182,172.99 × 309,717,013.49 - Step 4: Simplify right side
931,553,503.19x = 432,731,089,912,945,472 - Step 5: Solve for x
x = 432,731,089,912,945,472/931,553,503.19 - Step 6: Final answer
x = 464,526,286.93
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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.