Finding the Fourth Proportional to 121,873,063.68, 168,184,809.27 and 69,663,220.38
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Solution
The fourth proportional to 121,873,063.68, 168,184,809.27 and 69,663,220.38 is: 96,135,233.49
Step by Step Solution
- Step 1: Write the proportion equation
121,873,063.68 : 168,184,809.27 = 69,663,220.38 : x - Step 2: Convert to fraction form
121,873,063.68/168,184,809.27 = 69,663,220.38/x - Step 3: Cross multiply
121,873,063.68x = 168,184,809.27 × 69,663,220.38 - Step 4: Simplify right side
121,873,063.68x = 11,716,295,432,744,276 - Step 5: Solve for x
x = 11,716,295,432,744,276/121,873,063.68 - Step 6: Final answer
x = 96,135,233.49
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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.