Finding the Fourth Proportional to 214,585,623.12, 321,926,428.44 and 78,271,006.44
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Solution
The fourth proportional to 214,585,623.12, 321,926,428.44 and 78,271,006.44 is: 117,424,015.59
Step by Step Solution
- Step 1: Write the proportion equation
214,585,623.12 : 321,926,428.44 = 78,271,006.44 : x - Step 2: Convert to fraction form
214,585,623.12/321,926,428.44 = 78,271,006.44/x - Step 3: Cross multiply
214,585,623.12x = 321,926,428.44 × 78,271,006.44 - Step 4: Simplify right side
214,585,623.12x = 25,197,505,553,633,440 - Step 5: Solve for x
x = 25,197,505,553,633,440/214,585,623.12 - Step 6: Final answer
x = 117,424,015.59
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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.