Finding the Fourth Proportional to 99,762,607.10, 149,643,910.65 and 65,498,440.70
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Solution
The fourth proportional to 99,762,607.10, 149,643,910.65 and 65,498,440.70 is: 98,247,661.05
Step by Step Solution
- Step 1: Write the proportion equation
99,762,607.10 : 149,643,910.65 = 65,498,440.70 : x - Step 2: Convert to fraction form
99,762,607.10/149,643,910.65 = 65,498,440.70/x - Step 3: Cross multiply
99,762,607.10x = 149,643,910.65 × 65,498,440.70 - Step 4: Simplify right side
99,762,607.10x = 9,801,442,807,825,124 - Step 5: Solve for x
x = 9,801,442,807,825,124/99,762,607.10 - Step 6: Final answer
x = 98,247,661.05
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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.