Finding the Fourth Proportional to 10,903,415.80, 16,355,123.70 and 6,651,887.80
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Solution
The fourth proportional to 10,903,415.80, 16,355,123.70 and 6,651,887.80 is: 9,977,831.70
Step by Step Solution
- Step 1: Write the proportion equation
10,903,415.80 : 16,355,123.70 = 6,651,887.80 : x - Step 2: Convert to fraction form
10,903,415.80/16,355,123.70 = 6,651,887.80/x - Step 3: Cross multiply
10,903,415.80x = 16,355,123.70 × 6,651,887.80 - Step 4: Simplify right side
10,903,415.80x = 108,792,447,807,520.86 - Step 5: Solve for x
x = 108,792,447,807,520.86/10,903,415.80 - Step 6: Final answer
x = 9,977,831.70
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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.