Finding the Fourth Proportional to 21,289,992.24, 31,934,985.09 and 5,115,943.70
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Solution
The fourth proportional to 21,289,992.24, 31,934,985.09 and 5,115,943.70 is: 7,673,914.76
Step by Step Solution
- Step 1: Write the proportion equation
21,289,992.24 : 31,934,985.09 = 5,115,943.70 : x - Step 2: Convert to fraction form
21,289,992.24/31,934,985.09 = 5,115,943.70/x - Step 3: Cross multiply
21,289,992.24x = 31,934,985.09 × 5,115,943.70 - Step 4: Simplify right side
21,289,992.24x = 163,377,585,621,104.53 - Step 5: Solve for x
x = 163,377,585,621,104.53/21,289,992.24 - Step 6: Final answer
x = 7,673,914.76
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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.