Finding the Fourth Proportional to 931,553,503.68, 1,397,182,173.74 and 309,717,013.98
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Solution
The fourth proportional to 931,553,503.68, 1,397,182,173.74 and 309,717,013.98 is: 464,526,287.68
Step by Step Solution
- Step 1: Write the proportion equation
931,553,503.68 : 1,397,182,173.74 = 309,717,013.98 : x - Step 2: Convert to fraction form
931,553,503.68/1,397,182,173.74 = 309,717,013.98/x - Step 3: Cross multiply
931,553,503.68x = 1,397,182,173.74 × 309,717,013.98 - Step 4: Simplify right side
931,553,503.68x = 432,731,090,836,838,400 - Step 5: Solve for x
x = 432,731,090,836,838,400/931,553,503.68 - Step 6: Final answer
x = 464,526,287.68
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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.