Finding the Fourth Proportional to 1,438,940,728.35, 2,158,411,092.53 and 826,720,696.35
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Solution
The fourth proportional to 1,438,940,728.35, 2,158,411,092.53 and 826,720,696.35 is: 1,240,081,044.53
Step by Step Solution
- Step 1: Write the proportion equation
1,438,940,728.35 : 2,158,411,092.53 = 826,720,696.35 : x - Step 2: Convert to fraction form
1,438,940,728.35/2,158,411,092.53 = 826,720,696.35/x - Step 3: Cross multiply
1,438,940,728.35x = 2,158,411,092.53 × 826,720,696.35 - Step 4: Simplify right side
1,438,940,728.35x = 1,784,403,121,421,832,448 - Step 5: Solve for x
x = 1,784,403,121,421,832,448/1,438,940,728.35 - Step 6: Final answer
x = 1,240,081,044.53
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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.