Finding the Fourth Proportional to 313,855,397.65, 433,180,412.09 and 207,821,791.09
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Solution
The fourth proportional to 313,855,397.65, 433,180,412.09 and 207,821,791.09 is: 286,833,776.89
Step by Step Solution
- Step 1: Write the proportion equation
313,855,397.65 : 433,180,412.09 = 207,821,791.09 : x - Step 2: Convert to fraction form
313,855,397.65/433,180,412.09 = 207,821,791.09/x - Step 3: Cross multiply
313,855,397.65x = 433,180,412.09 × 207,821,791.09 - Step 4: Simplify right side
313,855,397.65x = 90,024,329,105,648,080 - Step 5: Solve for x
x = 90,024,329,105,648,080/313,855,397.65 - Step 6: Final answer
x = 286,833,776.89
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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.