Finding the Fourth Proportional to 19,372,859.88, 29,059,326.28 and 18,189,075.06
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Solution
The fourth proportional to 19,372,859.88, 29,059,326.28 and 18,189,075.06 is: 27,283,646.82
Step by Step Solution
- Step 1: Write the proportion equation
19,372,859.88 : 29,059,326.28 = 18,189,075.06 : x - Step 2: Convert to fraction form
19,372,859.88/29,059,326.28 = 18,189,075.06/x - Step 3: Cross multiply
19,372,859.88x = 29,059,326.28 × 18,189,075.06 - Step 4: Simplify right side
19,372,859.88x = 528,562,266,899,950.56 - Step 5: Solve for x
x = 528,562,266,899,950.56/19,372,859.88 - Step 6: Final answer
x = 27,283,646.82
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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.