Finding the Fourth Proportional to 99,720,008.20, 149,239,715.10 and 83,564,201.80
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Solution
The fourth proportional to 99,720,008.20, 149,239,715.10 and 83,564,201.80 is: 125,061,137.62
Step by Step Solution
- Step 1: Write the proportion equation
99,720,008.20 : 149,239,715.10 = 83,564,201.80 : x - Step 2: Convert to fraction form
99,720,008.20/149,239,715.10 = 83,564,201.80/x - Step 3: Cross multiply
99,720,008.20x = 149,239,715.10 × 83,564,201.80 - Step 4: Simplify right side
99,720,008.20x = 12,471,097,669,190,906 - Step 5: Solve for x
x = 12,471,097,669,190,906/99,720,008.20 - Step 6: Final answer
x = 125,061,137.62
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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.