Finding the Fourth Proportional to 663,369,853.68, 915,478,083.36 and 366,031,381.95
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Solution
The fourth proportional to 663,369,853.68, 915,478,083.36 and 366,031,381.95 is: 505,138,583.16
Step by Step Solution
- Step 1: Write the proportion equation
663,369,853.68 : 915,478,083.36 = 366,031,381.95 : x - Step 2: Convert to fraction form
663,369,853.68/915,478,083.36 = 366,031,381.95/x - Step 3: Cross multiply
663,369,853.68x = 915,478,083.36 × 366,031,381.95 - Step 4: Simplify right side
663,369,853.68x = 335,093,707,997,198,080 - Step 5: Solve for x
x = 335,093,707,997,198,080/663,369,853.68 - Step 6: Final answer
x = 505,138,583.16
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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.