Finding the Fourth Proportional to 28,446,665.13, 39,256,397.08 and 15,393,923.91
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Solution
The fourth proportional to 28,446,665.13, 39,256,397.08 and 15,393,923.91 is: 21,243,614.56
Step by Step Solution
- Step 1: Write the proportion equation
28,446,665.13 : 39,256,397.08 = 15,393,923.91 : x - Step 2: Convert to fraction form
28,446,665.13/39,256,397.08 = 15,393,923.91/x - Step 3: Cross multiply
28,446,665.13x = 39,256,397.08 × 15,393,923.91 - Step 4: Simplify right side
28,446,665.13x = 604,309,989,591,781.38 - Step 5: Solve for x
x = 604,309,989,591,781.38/28,446,665.13 - Step 6: Final answer
x = 21,243,614.56
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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.