Finding the Fourth Proportional to 77,577,107.13, 107,057,126.34 and 42,771,043.13
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Solution
The fourth proportional to 77,577,107.13, 107,057,126.34 and 42,771,043.13 is: 59,024,435.65
Step by Step Solution
- Step 1: Write the proportion equation
77,577,107.13 : 107,057,126.34 = 42,771,043.13 : x - Step 2: Convert to fraction form
77,577,107.13/107,057,126.34 = 42,771,043.13/x - Step 3: Cross multiply
77,577,107.13x = 107,057,126.34 × 42,771,043.13 - Step 4: Simplify right side
77,577,107.13x = 4,578,944,967,526,714 - Step 5: Solve for x
x = 4,578,944,967,526,714/77,577,107.13 - Step 6: Final answer
x = 59,024,435.65
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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.