Finding the Fourth Proportional to 108,727,288.70, 163,090,933.05 and 103,688,440.70
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Solution
The fourth proportional to 108,727,288.70, 163,090,933.05 and 103,688,440.70 is: 155,532,661.05
Step by Step Solution
- Step 1: Write the proportion equation
108,727,288.70 : 163,090,933.05 = 103,688,440.70 : x - Step 2: Convert to fraction form
108,727,288.70/163,090,933.05 = 103,688,440.70/x - Step 3: Cross multiply
108,727,288.70x = 163,090,933.05 × 103,688,440.70 - Step 4: Simplify right side
108,727,288.70x = 16,910,644,540,262,596 - Step 5: Solve for x
x = 16,910,644,540,262,596/108,727,288.70 - Step 6: Final answer
x = 155,532,661.05
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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.