Finding the Fourth Proportional to 121,489,755.66, 167,655,754.53 and 68,577,601.05
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Solution
The fourth proportional to 121,489,755.66, 167,655,754.53 and 68,577,601.05 is: 94,637,028.33
Step by Step Solution
- Step 1: Write the proportion equation
121,489,755.66 : 167,655,754.53 = 68,577,601.05 : x - Step 2: Convert to fraction form
121,489,755.66/167,655,754.53 = 68,577,601.05/x - Step 3: Cross multiply
121,489,755.66x = 167,655,754.53 × 68,577,601.05 - Step 4: Simplify right side
121,489,755.66x = 11,497,429,447,895,070 - Step 5: Solve for x
x = 11,497,429,447,895,070/121,489,755.66 - Step 6: Final answer
x = 94,637,028.33
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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.