Finding the Fourth Proportional to 68,498,105.13, 102,762,270.51 and 19,979,756.16
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Solution
The fourth proportional to 68,498,105.13, 102,762,270.51 and 19,979,756.16 is: 29,974,042.40
Step by Step Solution
- Step 1: Write the proportion equation
68,498,105.13 : 102,762,270.51 = 19,979,756.16 : x - Step 2: Convert to fraction form
68,498,105.13/102,762,270.51 = 19,979,756.16/x - Step 3: Cross multiply
68,498,105.13x = 102,762,270.51 × 19,979,756.16 - Step 4: Simplify right side
68,498,105.13x = 2,053,165,107,237,759 - Step 5: Solve for x
x = 2,053,165,107,237,759/68,498,105.13 - Step 6: Final answer
x = 29,974,042.40
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.