Finding the Fourth Proportional to 21,372,098,929.61, 29,481,242,883.26 and 13,329,476,486.06
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Solution
The fourth proportional to 21,372,098,929.61, 29,481,242,883.26 and 13,329,476,486.06 is: 18,387,035,128.67
Step by Step Solution
- Step 1: Write the proportion equation
21,372,098,929.61 : 29,481,242,883.26 = 13,329,476,486.06 : x - Step 2: Convert to fraction form
21,372,098,929.61/29,481,242,883.26 = 13,329,476,486.06/x - Step 3: Cross multiply
21,372,098,929.61x = 29,481,242,883.26 × 13,329,476,486.06 - Step 4: Simplify right side
21,372,098,929.61x = 392,969,533,792,171,261,952 - Step 5: Solve for x
x = 392,969,533,792,171,261,952/21,372,098,929.61 - Step 6: Final answer
x = 18,387,035,128.67
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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.