Finding the Fourth Proportional to 77,562,107.01, 107,034,836.13 and 42,279,139.62
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Solution
The fourth proportional to 77,562,107.01, 107,034,836.13 and 42,279,139.62 is: 58,344,737.60
Step by Step Solution
- Step 1: Write the proportion equation
77,562,107.01 : 107,034,836.13 = 42,279,139.62 : x - Step 2: Convert to fraction form
77,562,107.01/107,034,836.13 = 42,279,139.62/x - Step 3: Cross multiply
77,562,107.01x = 107,034,836.13 × 42,279,139.62 - Step 4: Simplify right side
77,562,107.01x = 4,525,340,780,944,090 - Step 5: Solve for x
x = 4,525,340,780,944,090/77,562,107.01 - Step 6: Final answer
x = 58,344,737.60
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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.