Finding the Fourth Proportional to 638,480,237.93, 881,102,338.62 and 345,124,805.93
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Solution
The fourth proportional to 638,480,237.93, 881,102,338.62 and 345,124,805.93 is: 476,272,021.52
Step by Step Solution
- Step 1: Write the proportion equation
638,480,237.93 : 881,102,338.62 = 345,124,805.93 : x - Step 2: Convert to fraction form
638,480,237.93/881,102,338.62 = 345,124,805.93/x - Step 3: Cross multiply
638,480,237.93x = 881,102,338.62 × 345,124,805.93 - Step 4: Simplify right side
638,480,237.93x = 304,090,273,620,696,640 - Step 5: Solve for x
x = 304,090,273,620,696,640/638,480,237.93 - Step 6: Final answer
x = 476,272,021.52
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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.