Finding the Fourth Proportional to 19,985,034.87, 29,973,068.33 and 9,191,966.31
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Solution
The fourth proportional to 19,985,034.87, 29,973,068.33 and 9,191,966.31 is: 13,785,887.09
Step by Step Solution
- Step 1: Write the proportion equation
19,985,034.87 : 29,973,068.33 = 9,191,966.31 : x - Step 2: Convert to fraction form
19,985,034.87/29,973,068.33 = 9,191,966.31/x - Step 3: Cross multiply
19,985,034.87x = 29,973,068.33 × 9,191,966.31 - Step 4: Simplify right side
19,985,034.87x = 275,511,434,250,728.12 - Step 5: Solve for x
x = 275,511,434,250,728.12/19,985,034.87 - Step 6: Final answer
x = 13,785,887.09
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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.