Finding the Fourth Proportional to 107,285,748.94, 148,106,820.23 and 71,990,925.99
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Solution
The fourth proportional to 107,285,748.94, 148,106,820.23 and 71,990,925.99 is: 99,382,697.51
Step by Step Solution
- Step 1: Write the proportion equation
107,285,748.94 : 148,106,820.23 = 71,990,925.99 : x - Step 2: Convert to fraction form
107,285,748.94/148,106,820.23 = 71,990,925.99/x - Step 3: Cross multiply
107,285,748.94x = 148,106,820.23 × 71,990,925.99 - Step 4: Simplify right side
107,285,748.94x = 10,662,347,133,792,164 - Step 5: Solve for x
x = 10,662,347,133,792,164/107,285,748.94 - Step 6: Final answer
x = 99,382,697.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.